Answer:
A. Connectivity
Explanation:
I just answered this question.
3 Examples of mainframe computers
z900
System z9
System z10
An Object Class. Hopefully this answer is right.
By looking at your code, it seems like you're trying to let the user enter positive numbers until the user enters a negative number. To achieve this, you need to indent int(input("Enter a number, negative to stop")) inside the loop.
The second answer choice is correct.
The answer is D. cortisol level would most likely decrease.