Determine whether the expression is a polynomial. If it is not explain why.
P2/3-17
It is a polynomial.
it is not a polynomial because the variable does not have a coefficient.
O It is not a polynomial because the exponent of the first term is not an integer
O It is not a polynomial because the exponent of the first term is negative.
O It is not a polynomial because the coefficient of the variable is not an integer.