If I would have to make a good guess, I would choose A.
Molybdenum is the element on the periodic table that has 42 as it's atomic number. It has 42 electrons. Hope this helps! =^-^=
What on earth, please repeat the question clearer
The legs of an insect are used to taste things walk jump and climb.
wings are for flying and sometimes camouflage
The mouth parts are for piercing and sucking their prey