The correct answer for the question that is being presented above is this one: "b. Mary had heard herself mentioned to Miss Bingley as the most accomplished girl in the neighbourhood; and Catherine and Lydia had been fortunate enough never to be without partners, which was all that they had yet learnt to care for at a ball"
Belives would work in you qustions
Answer:
Students have strong reasons to get involved in debate over gun laws.
This is a SIMILE - if words such as 'as' or 'like' are used in order to compare two things (in this case, 'giant rocks with razor edges crouch LIKE a sea monster with wide open jaws'), then it is a simile.