Does anyone have any idea what the hell this means or what t cells are? "t cells that fight bacterial and viral infections" im clueless on this

If a robot fixed another robot is it a engineer or doctor?

Why does meiosis produce cells with half the chromosomes? o a. most of the chromosomes are not necessary to keep an organism alive. b. a gamete needs only half the number of chromosomes because two gametes join together. o c. it makes the gametes easier to move around in the organism. o d. it is faster to produce gametes with fewer chromosomes.

I’m stuck on this question cuz i’m stupid sksksksk