"Pork. The Other White Meat." is an advertising campaign that promoted pork as a white-meat alternative to chicken or turkey. This is a positioning strategy that focuses on .

Competition

Explanation:

Positioning strategy that focus on competition will try to create a perception that the product offer some sort of value that make it better compared to other competition.

White meat often considered as a healthier option since it lower in cholesterol and Saturated Fat.

By Creating the statement "Pork. The Other White Meat." , the advertising team wanted the people to see that pork is healthy and  offer nutritional value as white meat , even though pork is a red meat and taste better.

answer; i believe the correct answer is (a) the correlation between the cause variable and outcome variable is zero;