The costs of running for office have been rising because of the professionalization of campaigns and the

The correct answer is heavy costs of a media campaign, especially TV air-time costs.

Explanation:

The cost of advertising commercials on television varies widely, depending on whether your ad will appear on local stations or national networks. The actual cost of your ad can be calculated by recording how much it costs to convert a prospect into a customer. Add the total production cost and the number of spaces your ad will be in, then divide that amount by the number of customers you converted during that time period to determine the average conversion cost.