C is the answer, i know this is late but it can at least help some one else maybe
Many observations provide a history that one may be able to surmise theories from.
Answer:
the overall charge of the nucleus is neutral
Explanation:
if the protons are greater than the neutrons then it is positive but since they are both equal the even out to neutral
<span>Case study: Boxing Day Tsunami, 2004. On 26 December 2004 a tsunami occurred in the Indian Ocean. It was the result of the Indio-Australian Platesubducting below the Eurasian Plate. It was caused by an earthquake measuring more than magnitude 9.</span>