Answer:
A.endospores
Explanation:
An endospore is a tough and resistant non-vegetative structure produced by certain microbes (bacteria) in order to withstand long periods of unfavorable conditions. The endospores are released by the microbe to help them survive that particular adverse period.
Endospores have an outer coat composed of protein that confers the resistance against chemical degradation upon it. Since endospores are produced when environmental harsh conditions are sensed, the endospores forms back into a vegetative form when the conditions become favorable.
Hence, endospores are the microscopic structures that often survive and withstand high pressure treatments. Halophiles are microbes resistant to high school with (salt) conditions, mesophiles thrive in moderate conditions.
