Answer:
4. Pathogens enter and multiply in body tissues.
Explanation:
When pathogen penetrates the host defenses, infection occurs in the host. Infection is a disease of the body that is caused by invasion and multiplication of pathogens (infectious biological agents that causes diseases or illnesses to the host) such as bacteria, viruses, parasites and so on normally not found with the body. They can easily spread from their point of origin if not contained due to the multiplicability of the pathogens causing it.
Answer: C. to move around from one setting to another.
Explanation: When writting nonfiction, the author have to be well plotted such that such makes and give his writing more freedom in moving around form one setting to another.
The correct answer is D. Sanitizing solution.
Dangerous bacteria should not likely be found in a sanitizing solution. This is because it is supposed to be clean and have undergone testing. Also, if a dangerous bacteria will be found in a sanitizing solution, then that would be a big problem.