Informed voting what is the central idea of the passage

The central idea of the passage on informed voting was:

Those who vote need to be well informed.

Explanation:

This is true going by the passage in which the author alluded to the fact that, the politicians spends fortunes running advertisements and jingles on what they would do if voted for. This ended up being a watered down approach which ended up being fake.

According to him, those who got elected happens to be those who has the best advertisements and jingles rather than those who meant well for the citizens. To him, when every voter is made an informed vote, definitely they will have a true representative of the government.

i think there should be answer choices