The pronoun case is 3) possessive, because it uses the pronoun "their."
A cause-effect relationship<span> is a </span>relationship<span> in which one event (the </span>cause<span>) makes another event happen (the </span>effect<span>).</span>
I am like so also totally lost
Mary Jane worked hard for her project, yet was disappointed to find out her project had gone missing.
Your answer would be Irony.