Answer:
The charge is 0.056 nC.
Explanation:
Given that,
Electric field = 2000 N/C
Distance = 5.0 cm
We need to calculate the charge density
Using formula of charge density


Put the value into the formula


We need to calculate the charge in 1.0 cm
Using formula of charge




Hence, The charge is 0.056 nC.
A.
It's has to do with the human body forming in the womb. It has a long explanation to it, but I hope just writing A helps.
I believe the answer is a: cells.