Answer:
we know number of protons in an atom of an element = it's atomic number
here number number of protons in Anton = 6 = ATOMIC NUMBER
recall, which element has Atomic number as 6 ?! Absolutely it's Carbon ! so the correct answer Option D ! { Carbon-14,
Carbon-14 (or 14C) contains six protons, eight neutrons, and six electrons; its atomic mass is 14 amu (six protons and eight neutrons) }