Hurry! i need on my exam. (10pts! )

an expression is shown below:

the square root of 50 plus the square root of 2

which statement is true about the expression?

it is irrational and equal to 6 times the square root of 2.
it is rational and equal to 6 times the square root of 2.
it is irrational and equal to 5 times the square root of 2.
it is rational and equal to 5 times the square root of 2.