Which of the Following Choices Is Not a Way by Which

Which of the following choices is not a way by which we can study the inside of the Sun?

A) We can make a computer model of the Sun's interior that allows us to predict the observable properties of the Sun.
B) We can send a space probe into the Sun's photosphere.
C) We can study solar neutrinos.
D) We can probe the interior of the Sun by studying the vibrations in its photosphere.