The subject is sponge because that is what is the main point of the sentence is.
Explanation:
Please where is the question
It is because there are certain weight limits that should be followed. When the EDS would exceed the specified limit, the aircraft will crash before it reaches its destination. This was taken from the science fiction called Cold Equation. Barton is a one of the EDS pilot. During his flight, he discovered there was a stowaway girl named Marilyn, hiding in the vessels area which eventually led to their demise.
Team rule, if you're going with that question.
