Answer: A. "They will be modified or replaced as new ones are developed."
Step-by-step explanation:
This statement is generally true. In the scientific process, ideas are subject to scrutiny, testing, and verification. If new evidence or observations emerge that challenge existing ideas, scientists may modify or replace those ideas with new ones that better explain the phenomena. So if Someone in the political sphere says you must do something without actual backing its more likely to be a detriment to your health and calls there own statement the science and disregards others. I'm looking at you Athony Fouche. The chances are they should not be considered a real scientist.