Why did the Compromise of 1850 fail to resolve the issues facing Americans at the time?

Select the best answer from the choices provided.
a. The Mexican-American War opened up new territory, increasing debates over slavery.
b. The Gadsden Purchase was poorly worded, confusing people
c. Texas refused to sell its portions of western territory, despite its high debts.
d. Slavery remained a growing, important part of the American economy.

HELP NEEDED ON MY PAGE!!!