I'm not the greatest at grammar, but I think the very first one is incorrect. It should just be a comma, then the second just a comma as well, but the last one is correct. (I have no idea, I am sorry if you get it wrong.)
The most appropriate language is formal language
D because it does not relate back to boosted brain power
1 I will Approve when I take my Math test. 2 You must have self approval before you can go on an airplane. (to approve, aprroved) Happy to help you! :)
During interphase<span>, the </span>cell<span> performs its normal functions and prepares for </span>cell <span>division. </span>During<span> mitosis, the </span>cell<span> undergoes </span>cell<span> division (Read Leaf: What specific events </span>happens during<span> mitosis? to learn more about mitosis). The </span>cell<span> cycle occurs in two major stages: </span>interphase<span> and mitosis. </span>