The correct answer is B. The first sentence refers to a general proposition - <em>all combative sports should be strictly monitored</em> - and then it specifies that the Ultimate Fighting Championship (UFC) should fall into a category to be <em>monitored and regulated</em>.
Bodhisattva Guanyin was trying to sell an embroidered cassock nine-ringed staff, but then she decides to give them as a gift to Tripitika.
Our homework is corrected by the teacher
Although the teacher is doing the action, the subject of the sentence is "our homework". It also uses a form of to be (in this case it is "is"). Both of these things are what makes a passive sentence.
Hope this helped!
<span>struggling to survive through seemingly insurmountable odds.</span>
