Final answer:
The lack of selectivity is one disadvantage of cable television for advertisers compared to network television. Option c.
Step-by-step explanation:
For advertisers, the lack of selectivity option c, is one disadvantage of cable television as compared to network television. Cable networks often specialize in different types of programming, which means that advertisers may have a harder time reaching their target audience compared to network television that has a broader reach. With cable, advertisers need to carefully select the channels that align with their target market to ensure that their ads are seen by the right audience.