"these two choices" is correct and usable in written English.
You can use it in any situation where you are referring to two choices among a group of more than two choices. For example, "I was faced with several difficult decisions, but I eventually narrowed it down to these two choices: invest in stocks or pay off my student loans."
What are the key differences between these two choices?
These two choices have something in common — each has a bill of around $100 billion per year.
Parliament remains gridlocked between these two choices, but, and as today has demonstrated, it can still act decisively.
These two choices of writing the equations of motion are presented with relevance to the dynamics of flexible bodies in planar motion.
The issues involved are so complex that many managements oscillate between these two choices or try to effect some compromise between them.
Numerical modeling is performed to assess the merits of these two choices by comparing predicted scaling behavior of NOx emission index with the experimental data of Driscoll and co-workers [1, 2].
An understanding of the causality between these two choice behaviors may aid in the development of tour-based travel demand modeling systems that attempt to incorporate models of trip chaining and mode choice.
These two choice paths, C or P, cannot be combined at any point in this sys-net: their choice paths began with the mutually exclusive options 'graphic' (a1 in pp) or 'phonic' (a2 in pp) belonging to the same primary system of pp (compare the analogous choice paths 3 and 4 in Tables 3 and 4 above).
These two choice scenarios are identical, except that one is framed in terms of gain, the other in terms of loss.
Since it is plausible for decision-makers to seek medical services with both alternatives or with neither one, we expanded the choice sets by these two choice alternatives.
These three choices are in perfect harmony with the original note and thus would sound pleasant in any case.
