Answer:
The correct answer is B.
Explanation:
A is excluded because the part of the sentence after the semicolon is not an independent clause.
C is not a properly structured sentence. The meaning is fuzzy, and difficult to comprehend.
Finally, D. The "yet" indicates a form of surprise at a certain outcome. It does not work in this situation because 1 ton is a lot of weight.
This explanation is weird but I hope this helped!