Pair Programming

Correct Answer: They should try to use each other's preferred tools for some time to gain comfort and then decide on the one that suits their joint workflow best.

When working in a pair programming environment, it's crucial to find a common ground that accommodates both team members in order to maintain productivity. The best decision in the given situation is for Nick and Grace to try using each other's preferred tools for some period of time. This will enable them to gain comfort with both Emacs and Visual Studio Code, and then they can make an informed decision about which tool suits their joint workflow best. The idea of using both tools at once is impractical, as this could lead to confusion and inefficiencies. Simply leaving the project or deciding based on a coin toss does not address the issue constructively.

Correct Answer: Perform regular small tests and reviews during their coding sessions.

Performing regular small tests during the coding session can reduce their debugging time because they can catch and fix issues quickly, rather than accumulating bugs until the end.

Correct Answer: Peter can start as the driver, guiding Sara through the language and explaining its features, followed by switching roles.

Pair programming can act as a learning opportunity as well. Peter should take the lead in driving the coding process while explaining and guiding Sara through the language, then they can switch roles to ensure equal participation and learning.