Consider the following set of real numbers:

open curly brackets square root of 4 comma space short dash square root of 2 comma space short dash 2 over 3 comma space 1 comma space 9 over 8 comma space square root of 9 over 4 end root comma space 2.4 with bar on top comma space square root of 10 close curly brackets

Which of the following lists all of the rational numbers in the set?


square root of 4 comma space short dash square root of 2 comma space square root of 9 over 4 end root comma space square root of 10


square root of 4 comma space short dash square root of 2 comma space short dash 2 over 3 comma space 9 over 8 comma space square root of 9 over 4 end root comma space square root of 10


square root of 4 comma space short dash 2 over 3 comma space 1 comma space 9 over 8 comma space square root of 9 over 4 end root comma space 2.4 with bar on top


short dash 2 over 3 comma space 1 comma space 9 over 8 comma space square root of 9 over 4 end root comma space 2.4 with bar on top