Those who move slower and take their time can usually avoid error. Those who move quickly mess things up and can literally “fall.”
D is incorrect because it is a run-on sentence.
Adverbial clause is an adverb which is a dependent clause. It's used as an adverb in a sentence to show the time, contrast, conditions, place, reason, concession, purpose or result.
Hope i helped!
It depends on the choices
