Which will most likely happen on the International Space Station?

The correct answer is this one: "D. an experiment to study the growth of cells in space. Most likely, an experiment to study the growth of cells in space will happen on the International Space Station.

Here are the choices:

A. an orbit of Jupiter

B. a safe landing of the station on earth

C. another space race between 16 countries

D. an experiment to study the growth of cells in space