An adaptation is…
a. feature of an organism that increases its fitness
b. a change in the genotypic frequencies
c. resemblance to another species
d. dependent upon close kinship

a. feature of an organism that increases its fitness

Explanation:

An adaptation can be define as the changes occurring in the organism typically in the anatomy, physiology, and at the genetic level so as to make the organism suitable for survival in the unfavorable environment. The adaptation allows the development of the features in the organisms which increases it's fitness and chances of survival.

1. (1.2kw)x(15/60hours) = .3kwh --> a

2. (5kw)x(90/60hours)x(8cents/kwh) = $0.60 --> d

3. microwave --> 1200 watts = (1.2kw)x(6/60hours) = .12kwh

coffee-maker --> 900 watts = (.9kw)x(10/60hours) = .15kwh

therefore, it requires more energy for the coffee-maker to do the same amount of work.

so the answer is a.

b is the correct answer