which of the following is true about the expression 7+ square root of 3
a) It represents the sum of a rational and irrational number and is equivalent to a rational number.
b) It represents the sum of a rational and irrational number and is equivalent to an irrational number.
c) It represents the sum of two rational numbers and is equivalent to a rational number.
d) It represents the sum of two irrational numbers and is equivalent to an irrational number.