Which Scenario Best Illustrates the Concept of Adaptation

Multiple Choice

Which scenario best illustrates the concept of adaptation?

A) Plant "A" produces either large fruit or small fruit;farmers breed only the large fruit plants,causing them to outnumber the small fruit variant.
B) Plant "B" has a rare waxy leaf variant;as the environment becomes more arid,the waxy leaf variant becomes more prevalent.
C) Plant "C" has a genetic mutation that creates a taller variant;this variant is able to survive and reproduce.
D) Plant "D" has a recessive allele that causes a higher rate of photosynthesis;plants with this phenotype have a higher energy reserve.