Means only one company became historywhich is the acquired
company while the acquiring company remain.
a. joint venture
b. merger
c. acquisition
d. both a and b

The correct answer is C. Acquisition means only one company became history which is the acquired company, while the acquiring company remains.

Explanation:

An acquisition occurs when one company or corporation takes control of another (the name itself indicates that the company that acquires the other is the dominant one). Generally, larger companies acquire smaller ones. In such cases, the company acquires a smaller one and establishes itself as the owner.

if I read your question correctly, you can use multiplication to get the same answer with division. for example;

 2 x 2 = 4;  4 divided by 2 = 2.

 8 x 4 = 32;  32 divided by 8 = 4;  32 divided by 4 = 8.

5 x 6 = 30;  30 divided by 5 = 6;  30 divided by 6 = 5

hope this helped! :D