The correct option is C:
"the number of computers in a home and the number of movies watched"
First, we say that there is a correlation between two variables x and y, if there is a dependency between these two variables.
For example, if we go to the first option.
You can expect that if a lot of people download the music of an artist, the there is a lot of people that likes that artist, and then the number of people attending the concert will be large, so there is a correlation between the two variables.
Similar with option B, if you have a lot of pets, you need to buy them a lot of food, so you will spend a lot on pet stores.
For option D we can take a similar assumption: We can assume that you need to drink something with your bagel, so there may be a correlation between the two variables. (the two variables being a type of food).
Finally, for option C, there is no real relation between number of computers and number of movies watched (as the number of movies that you can watch does not depend on the number of computers that you have a home).
So here we have no correlation, then this is the correct option.
If you want to learn more about correlation:
https://brainly.com/question/4219149
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