Consider the following set of real numbers: open curly brackets short dash square root of $7$ comma space short dash $0\mathrm{.}7$ with bar on top comma space $1\mathrm{.}5$ comma space square root of $25$ close curly brackets Which of the following contains all of the irrational numbers in the set? a$.)$ short dash square root of $7$ comma space square root of $25$ b$.)$ short dash $0\mathrm{.}7$ with bar on top comma space $1\mathrm{.}5$ comma space square root of $25$ c$.)$ short dash square root of $7$ d$.)$ negative root index blank of $7$ comma end root short dash $0\mathrm{.}7$ with bar on top comma space square root of $25$