Which statement indicates that an aquatic organism demonstrates k-selection?
a. it has an extremely short lifespan.
b. it lays 70 to 190 eggs per season.
c. it reaches sexual maturity at 15 years of age.
d. neither parent takes care of the young.

The correct answer is C.
 It reaches sexual maturity at 15 years of age.

 K-Selection is termed as the selection of the combination of traits in an organism. They trade off between quality and quantity of offspring. This theory was used as a heuristic device. K-selection theory, selective pressure are hypothesized to drive evolution in one generalized direction. The best example which illustrates this k-selection is a polar bear producing one-two cubs for every period of three years.

The answer is d. when it begins to fall back to the child's hand