Question

The gravitational attraction between two objects will blank if one object acquires more mass

Answer 1

Hey there!
The answer to this is increase.  

The gravitational attraction between two objects will increase if one object acquires more mass. 

Hope it helps! :D

Answer 2

If an object needs more mass, then it also has a stronger gravitational pull. The gravitational pull may change as to where you are. But the mass ALWAYS stays the same, whether is be in space, or on earth.

If their is more mass, there is a stronger gravitational attraction.