A comparative adjective is used when we compare and contrast two different objects. The adjective is either connected with the suffix -er, or add the word more. From the given sentence above, the comparative adjective used is "more forceful". The comparison is between the mighty water spirit and any creature of land or sea.
<span>The correct answer is A, because that is the only option where there is a subordinate adjective clause 'which come in many varieties'. </span>
He climbed out of the trench and made his way carefully back to the clumped bushes where the kitchen was.
Can you give a little more detail ?