Is there anyway i can make my own pets

You can breed different animals, like dogs or cats. and experiment what breeds you get. Or you can buy the toy pets that you leave in water and they grow into pets. (not alive of course)

Maybe experiment more and research!

Cross breeding different types of animals of your desire. ( not all will successfully work) But yes it's possible you can make your own pet.

1 electron has charge =1.602* 10⁻¹⁹ C
1 mole of electrons have 1.602* 10⁻¹⁹*6.02*10²³C = 9.64*10⁴ C/1mol

One ion Co²⁺   takes 2e⁻ to become Co⁰.
1 mol of Co²⁺  ions take 2 mole of e⁻ to become Co⁰, so
 0.30 mol Co²⁺  ions take mole of 0.60 mol e⁻ to become Co⁰

9.64*10⁴(C/1mol) *0.60 (mol)≈ 5.8 *10⁴ Coulombs.
Correct answer is C