The correct answer is d ( an MUD with all four player types)
The correct answer is this one: "D. an experiment to study the growth of cells in space. Most likely, <span>an experiment to study the growth of cells in space will</span> 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