Answer:
A
Explanation:
A mismatch occurs when organisms that were well adapted to one environment cannot evolve rapidly enough to adapt to new changes in the environment. Hence, a trait that once confers an adaptive advantage becomes inimical due to the changes in the environment.
In order words, a mismatch occurs when a once adaptive trait becomes maladaptive or no longer confers an adaptive advantage to organisms due to a change in the environment but still persists in organisms.
For example, an organism with a body adapted to aquatic habitat suddenly finds itself in a terrestrial habitat due to climate change. The body that use to be adaptive to the environment would suddenly become maladaptive to the new environment.
The correct option is, therefore, A.
