I am thinking the answer would be either c or d. Just because slavery wasn't abolished until 1865, and slaves were always in great demand, they picked cotton, did everything that had the word work in it, which would help economically. But d could work as well, because if the landowner is building a school, then he's helping the children in the economy have a better education. So yes, d is your best bet.
False Because He Was Shot In April
The New Jersey plan called for equal representation for all states in the congress. The correct option among all the options given in the question is option "b". The states wanted equal representation in the Congress irrespective of the size of the population of that state. They also wanted the power to regulate and tax interstate commerce.
By using a peaceful way instead of doing a revolutionary war