ImmuneEarth, a research and development company, has a motto to "eradicate all diseases." It has numerous departments that research the cure of various diseases. One of its largest departments includes the AIDS department where more than 500 scientists are researching the cure for AIDS. ImmuneEarth has numerous computers that have been grouped into a cohesive system for this purpose. Recently, one of its computers was updated because it had low performance which had slowed the entire system. Which of the following is ImmuneEarth using to research the cure for AIDS?
A. Grid computing
B. Green computing
C. Trusted computing
D. Edge computing
E. IP convergence

In Grid computing, computers are connected over a network or the internet to deal with high computational problems or data. This is done through the help of a middleware software which allows for effective communication between the connected computers.

Since ImmuneEarth has numerous computers that are grouped to function as a cohesive system for researching into the cure for AIDS, it can be said that they are using a grid computing process for their research.