Three months after independence was declared in 1776, which state adopted a new state constitution with only a one-house legislature?

a. pennsylvania

b. south carolina

c. rhode island

d. new york

After independence has been declared in the year 1776, the state that adopted a new state constitution with having only one house legislature is the Pennsylvania. Pennsylvania is located in the United States in which lies at the Mid-Atlantic regions. It had a Pennsylvania constitution of 1776 after the declaration of independence where it has been considered to be labeled as most democratic that occurred in America. Correct answer is letter A.