Which statement is true about the product square root of 2 (5 + square root of 8 )? (2 points)
a.It is rational and equal to 7.

b.It is rational and equal to 9.

c.It is irrational and equal to 4 + square root of 10 .

d.It is irrational and equal to 4 + 5 square root of 2 .