I would go with B because most times when kids start to feel attracted to males/females, that happens while the teen is maturing.
Charles Darwin said there where rudimentary parts on the embryos.These included the muscles of the ear<span>, </span>wisdom teeth<span>, the </span>appendix, the tail bone<span>, </span>body hair<span>, and the </span>semilunar<span> fold in the corner of the </span>eye<span>.</span>
To introduce you self how can you control yourself
No sex at all :P
Condoms and surgerys can help prevent it at least 80% of the time, however not having sex at all is the only 100% way at avoiding it
Hope this helps ^^