Otero translated the phrase "three less than a number" into the expression 3-x. which best describes the accuracy of otero's expression?

a. it is accurate. the phrase can be translated as "three" = 3, "less than" = subtraction, and "a number" = x, so 3-x is the correct expression.

b. it is inaccurate. three is being subtracted from a number, so x-3 is what he should have written.

c. it is inaccurate. three is being compared to a number, so 3< x is what he should have written.

d. it i inaccurate. three is being added to a number, so 3+x is what he should have written.