Answer:
A. [tex]\frac{4}{5}y^{2}+\frac{5}{6}y^7[/tex]
Step-by-step explanation:
A polynomial is a combination of terms separated by + or − signs. A polynomial does not contain variables raised to negative or fractional exponents, variables in the denominator or under a radical, or any special features such as trigonometric functions, or logarithms.