Hello imspiderman04,
Thank you for posting your question on brainly.
I believe tha answer is c.third person
hope i helped,
Cheerio!
A simile can be found when using "like" or "as" between two things. Example: I'm as happy as a clown.
Your question would be a metaphor. Both things are being compared to a science expieriment, probably meaning that they need to have an outcome, but it isn't known for sure if it will be a good or bad outcome.
Things like this can be taken many ways, so if you think something else, I'm sure it would work as well.
Answer:
the letter will be wrote by them
