Plz help I will mark you brainlist plz

Explanation:

The nucleus is the small region in the center of the atom containing protons and neutrons. The nucleus has positive charge.

A Proton is positively charged and is found inside the nucleus. The number of protons in each atom is unique to each element. Protons are made of quarks.

Neutrons have no charge and are also inside the nucleus. Neutrons are also made of quarks. The mass of a nuetron is slightly larger than a proton's

I'm not sure if this is enough information but I hope this helps :)

answer; ///i believe that the correct answer is (a) specialized cells)

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