The phrase "a primary question about" is correct and usable in written English.
You can use it when introducing a significant or fundamental inquiry regarding a specific topic or subject matter.
Example: "In our discussion of climate change, a primary question about its impact on biodiversity must be addressed."
Alternatives: "a key question regarding" or "a fundamental question concerning".
As an employer, I stay focused on one primary question about each employee: What is going to free, fuel, and inspire this person to bring the best of him or herself to work every day, most sustainably?
We coded responses to the primary question about patients' most important attributes and examined the entirety of each interview to identify additional attributes expressed elsewhere in participants' accounts.
The primary question about sexual identity asked, "Recognizing that sexuality is only part of your identity, how do you define your sexual identity?" Response categories were: only heterosexual, mostly heterosexual, bisexual, mostly homosexual or lesbian or gay, and only homosexual or lesbian or gay.
David B. Finkelstein, a molecular biologist and the director of the Metabolic Regulation Program at the National Institute on Aging, said Dr. Attardi made a "very basic and important observation" that poses primary questions about "what is happening to the integrity of this integral part of every cell".
This paper describes the process of model building for a section of the Dee valley in northeast Scotland, the development of software to support interactive exploration, and an experiment which was designed to answer some primary questions about validity and some secondary ones about local landscape preferences.
One of the primary questions about Face ID that has come from many quarters is how Apple is going to handle law enforcement requests for facial data.
The resulting primary question was: ' What evidence exists about how people initiate and pursue talk about sensitive future matters including death, dying and planning for end of life?.' Defining the scope (see below) required reaching clarity about what would count as ' sensitive future matters' for the purposes of the review.
The survey's primary question was "What question(s) about the prevention, diagnosis and treatment of sight loss and eye conditions would you like to see answered by research?" Following closure of the survey, all submissions were examined.
The primary question is, as Mr Konczal says, about the fairness of the way the tax code distributes the burden of taxation.
