According to the delegate theory of representation,
a. officials should act according to the views of the electorate.
b. focus groups are of little use.
c. politicians should let their conscience guide them in making decisions.
d. only the most intelligent members of society should serve in leadership roles.
e. opinion is only a barometer, to be used as the legislator sees fit.

option 'a' Is the correct option. ''officials should act according to the views of the electorate''.

Explanation:

See, before we start checking which option is right or not. Let us first know what the delegate theory of representation means;

The delegate theory of representation means that the electorates will vote in their candidates as delegates which acts according to whatever the electorates says they(delegates) should do.

Now let us look at the option 'e' which says that; 'opinion is only a barometer, to be used as the legislator sees fit'. This does not go with what is defined above that explains what the delegate theory of representation means.

This is the same with options 'd' ,' c' and 'b'. Only option 'a' goes with it. So, option 'a' is right.

using the scientific method.

answer; correlational;