The correct answer is A) unqualified candidates can be elected to local office simply because they are the same party as a popular presidential candidate.
An argument to separate national elections from local elections is "unqualified candidates can be elected to local office simply because they are the same party as a popular presidential candidate."
So it is important to separate both in order for the citizens to really know the kind of candidate they need to vote for in a local election. This way, electors have the time to learn more about the candidate background, its degrees in college, its experience in politics or business, so voters can make the right choice