Final answer:
The number of members each state originally had in the House of Representatives was b) proportional to the state's population, as outlined in Article I, Section 2 of the U.S. Constitution.
Step-by-step explanation:
According to Article I, Section 2 of the Constitution, originally, the number of members that each state had in the House of Representatives was b) Proportional to a state's population. The Constitution established a bicameral legislature, which comprises the Senate and the House. While the Senate has two senators per state, the House representation is based on population, as determined by a census that occurs every ten years.
No state would have less than one representative, but beyond the minimum, the more populous a state, the more representatives it would have. This method of apportionment reflects the principle that the people are the source of governmental power and ensures representation is anchor to population numbers.