Without our two political parties cutting across economic and geographic interests democracy as we know it could never have been made to funtion. The author probably meant to suggest that

Question

a) an important feature of u.s. political system is the broadly based appeal of the two political parties
b) each political party appeals to a different social class
c) only a two-party system can funtion in a democracy
d) political parties in the United States tend to represent sectional interests
e) there is no significant difference between the democratic and republican parties

i think is c

Answer 1

The author is saying that there are members of each of the political parties in all parts of the US and from all levels of economic society. Go back and recheck your answers for a better one.