SAT Question 28c6bd8c: Percentages answer and explanation with Desmos solution

Choice C is correct. According to the table, $63\%$ of survey respondents get most of their medical information from a doctor and $13\%$ get most of their medical information from the Internet. Therefore, $76\%$ of the $1,200$ survey respondents get their information from either a doctor or the Internet, and $76\%$ of $1,200$ is $912$.