When the body is earth connected, electrons from the earth flow into the body. This means the body is
A. Uncharged
B. Charged positively
C. Charged negatively
D. An insulator

Hint: Grounding is the process of removing the excess of electrons in the body by connecting the body to the ground. When the charge in the body becomes excess in number, there is a need to remove the excess charge, this excess charge can be removed by the process of grounding.

Complete step by step answer:
Consider a case of a positively charged body.
When the positively charged body becomes excess in positive charge, it is grounded. When the body is grounded, the negative charges from the earth will get attracted to the positive charge. Therefore, the charge in the body gets neutral.
In the case of a negatively charged body, the negative charge in the body will repel the charges coming from the earth. Therefore, the excess charges in the body will flow to the earth, making it neutral in charge.
But, in the question, it is not mentioned that the body is positively charged or negatively charged.
Therefore, we will consider it as an uncharged body. Therefore, when the uncharged body is grounded, the negative charge from the ground will flow to the body. Therefore, the body will become rich in negative charges, or the body will become negatively charged.

So, the correct answer is “Option C”.

Note:
Any object can be grounded only if it has a conducting path to the ground. This conducting path will allow the electrons to flow from the earth to the object.
Also, the number of charges that the object is willing to share is proportional to the size of the object.
The excess charges in the body will flow to the earth, making it neutral in charge.