_ is the use of a collection of computers, often owned by many people or different organizations, to work in a coordinated manner to solve a common problem.

"Grid computing" is the correct answer for the above question.

Explanation:

Grid computing is a process in which many computers are participating to solve a single problem. This type of process is distributed multiple computers to perform a different type of task. If there is large problem and if many computers solve that problem, then that problem is solved easily within a few minutes.This is because many computers are working for that problem.The above question asked about that process in which many computers are working to solve a single problem. This processor is known as "Grid Computing".

Ithink it would be c (a word object) not 100% sure though