AMC 8 2012 Problem 7

Isabella must take four 100-point tests in her math class. Her goal is to achieve an average grade of 95 on the tests. Her first two test scores were 97 and 91. After seeing her score on the third test, she realized she can still reach her goal. What is the lowest possible score she could have made on the third test? $\textbf{(A)}\hspace{.05in}90 \textbf{(B)}\hspace{.05in}92 \textbf{(C)}\hspace{.05in}95 \textbf{(D)}\hspace{.05in}96 \textbf{(E)}\hspace{.05in}97$