a). No. "Pentameter" has 10 syllables per line.
b). No. This choice doesn't mean anything.
c). No. This is the description of a trochee, not an iamb.
d). I don't know anything about Italian sonnets. But I do know that
Shakespeare used iambic pentameter, and the other choices have
been eliminated, so I'll go with this one. (the "multiple-guess" method)