The phrase "answer to this challenge" is correct and usable in written English.
It can be used when referring to a response or solution to a specific problem or difficulty presented as a challenge.
Example: "In order to succeed, we must find an effective answer to this challenge."
Alternatives: "response to this challenge" or "solution to this challenge".
My answer to this challenge is the comfort salad, and the key to the comfort salad is the exciting crop of winter veg, now just coming on stream.
To those who say the answer to this challenge is more integration, I say look at the countries in Europe who signed up to Schengen but are now putting up fences and re-establishing border checks.
K.A.Care's answer to this challenge is to put financial and technical support behind the development of alternative energy resources, including an ambitious target of generating up to 41 gigawatts of energy, or one third of future supply, from solar plants by 2032.
Britain's defiant answer to this challenge to its pride and prestige and imperial interests is to give Hitler four days to think it over and to back down in whatever face-saving way he and Dr. Goebbels may be able to devise.
All this was discussed intensively at the 25th Annual World Water Week in Stockholm, with the takeaway lesson being not that we have an off-the-shelf answer to this challenge (there is none) but that we need new models of cooperation, and that we already have sufficient data to begin redressing this systemic problem.
The answer to this challenge was conversion of the JME Java code to JavaScript.
Up to this moment, the most feasible answers to this challenge are steels hardened by copper precipitation, like HSLA-80 or ASTM A710, and the so-called ultra low carbon bainite (ULCB) steels.
Patient-centred care (PCC) answers to this challenge by incorporating patients' preferences, values, beliefs, illness understanding, illness experience and information needs into the decision-making process, thus encouraging patient engagement and collaborative goal setting [ 15, 16].
But the answer to this difficult challenge is to double down on efforts to keep girls in school, to defy them, as Malala Yousafzai and other courageous girls have done.
