HELP PLEASE i don’t understand this and thank you for helping me

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the atomic number of carbon is six, which means that a carbon atom has six protons. carbon has three naturally occurring isotopes: carbon-12, carbon-13, and carbon-14. which of these statements are true about carbon and its isotopes? select all that appl

it's c (engineer's do their work with mechanical stuff not on any living being)

answer seismograph;