One Way to Get Fruit to Ripen More Quickly Is

One way to get fruit to ripen more quickly is to place it in a paper bag with other ripe fruit.Which of the following best explains this observation?

A) Ripe fruit release ethylene gas
B) Ripe fruit break down auxins
C) The lack of oxygen promotes photosynthesis which ripens the fruit
D) Ripe fruit carry fungi that attack other fruit
E) When fruit is in the dark it thinks it is underground and begins to germinate