<p>Can anybody tell me why the answer is B?</p>
<p>"more sorrier" is redundant, so it's grammatically incorrect.</p>
<p>if you use set up a comparative between two things, you need to use "than", but (c) and (e) don't. to equate two things, you need to use "as . . . as," not "as . . . like," which (d) does. (b) uses a properly formed comparative version of "sorry" and also uses "than" correctly.</p>
<p>we can leave aside the "i" versus "me" thing for this sentence if you want :) it ends up not mattering. just know that the usage of "i" in (b) is fine.</p>