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Number 1 - 3 terms (B)Number 2 - 2nd and 3rd options

Number 1 Explanation:

Terms are separated by addition or subtraction signs.There are three parts separated by two addition/subtraction signs.That means there are three terms.

Number 2 Explanation:

Polynomials can't have negative exponents.Polynomials can't have fractional exponents on variables or roots of variables.For the first option, can also be written as , so it has a negative exponent and is not a polynomial.The second and third options follow polynomial rules.The fourth option has , which is the same thing as . Polynomials can't have roots of variables (or fractional exponents on variables), so this isn't a polynomial.