Answer:
B, unsure about the new experience.
Explanation:
if you look in the writing, you can see key sentences that had a hint of worry and hesitation to them. for example "pressed for time, I finally decided it was safe enough to try."
The answer is c because “they’re” is “they are” so it would be correct to use that one
To make the story intresting
It would be a subordinate cause, for it can't stand on its own. Think about it: Since early this morning. What happened since early morning? Since it doesn't provide that information, it wouldn't be able to be an independent cause.
Also, I don't believe that the sentence is grammatically correct :)
