Hi, the correct answer would be D - satiate. All of the remaining examples are derived from Latin root (im)plere: "comply" from "complere" (fill up, fulfill), "implement" from "implere (fill up), "replete" from "re" + "plere" (fill). Only "satiate" derives from "satis", meaning "enough".
It's certainly sensory. And it's figurative too. I think I'd pick figurative because the central piece of language is a simile. That's pretty good use of language when you compare the bobbing heads of flowers to helmeted soldiers.
I think it's present participle
the overall theme of young love is inexperienance, and decisiveness that that person is your sole mate...