Answer:
C. Likely to change easily; example
B the person who made it
Explanation
you shouldn’t let anyone tell you that your own idea & what you think is in correct unless it has something to do that needs to be scientifically proven
Answer: D
Reasoning: If you think about it you cannot use it's in any other tense. Past tense, it's wouldn't work. Future tense, it's may not work.
Tactic: Process of Elimination