Read this sentence:
francine grabbed me and propelled me through the door toward the registration table and the entry forms.
based on the sentence, what does propel mean?
bother and annoy
move repetitively
elaborate or embellish
push something forward

Option D, push something forward

Explanation:

As mentioned in the sentence that francine propelled "me" through the gate towards registration table, simply gives a sense to the reader /listener that Francine is pushing "me" towards the door. This is clear from the statement itself that Francine has pushed the subject "me" in the sentence in order to move him/her towards the registration desk.

Thus, option D is correct.

these muscles maintain the blood pressure in the vessels. the smooth muscles are innervated by nerves of the autonomic nervous system. when the muscles contract, they cause vasoconstriction of the vessels and increase blood pressure. when the muscles relax, they enable vasodilation of the   blood vessels hence reduce blood pressure.