My answer is a. He has already been to the asteroid
It's a fragment, of a sentance.
It's either Those who try to overrule fate do so their sorrow, or It's always best not to take any risks in life. Are you in 8th grade Language arts?
there are no choices of phases here
The sentence contains misplaced modifier.
According to the sentence, the one got hit by the car was Gunther. However, putting "I" as the subject of this sentence means that "I" was the one got hit. ("Having just been hit by a car" and "rushed over..." were done by the same person - "I")
So that, this sentence should be corrected, the following is an example:
<em>"Gunther had just been hit by a car, I rushed over to see if he was breathing."</em>