Every recursive function should have an exit criterion (=handling the base case) to exit the recursion.
Without it, it wil recurse forever, until system resources run out (typically the call stack will overflow and your program will crash).
Answer:
B.a high school diploma and some training
Explanation:
Undoubtedly, NSA professional requires limited education, and a high school diploma is enough for them. However, they will need some training related to security services as well. and only then they will be able to work as an NSA professional. Hence, having only a high school diploma is not enough, and the certificate will also not work. However, they also do not need a bachelor's degree. And they definitely need a high school diploma and some training. That is certainly going to be enough for becoming an NSA professional.
Technical program - cosmetologist
Bachelors degree - nutritionist
Doctorate degree - molecular biologist
All careers are dependent on the required education for a particular career and the complexity of education to be competent.
Real time system means that the system is subjected to real time, i.e., response should be guaranteed within a specified timing constraint or system should meet the specified deadline. For example: flight control system, real time monitors etc.