When there is little water in its habitat, the walking catfish can use its pectoral fins to move on land. Which of these will MOST LIKELY happen to a population of walking catfish if over millions of years all surrounding water dries up? A. The population is likely to evolve to have weaker pectoral fins.

B.
The population is likely to evolve to have stronger pectoral fins.

C.
Walking catfish with stronger pectoral fins and those with weaker pectoral fins will both become extinct.

D.
Walking catfish with stronger pectoral fins and those with weaker pectoral fins will both survive, so evolution is unlikely to occur.