The objective of testing is to identify and eliminate execution errors that could cause a program to terminate abnormally, and logic errors that could have been missed during desk checking.
a) unit
b) integration
c) user
d) system

I would say "user" is the correct answer

Explanation: This question is clearly talking about a computer program so the "user" is like a BETA tester. "Someone who tests games, websites, and apps before they are released.

answer; (b) agriculture, food, and natural resources;

answer; the correct answer is technician b;