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Verified Answer :

Polynomial A : x^4 + 2 x³ - x² + 7 x + 11 has a Quartic degree.
Polynomial B : x² + 4 x is a Quadratic binomial.
Polynomial D : 5 x² - 2 x + 4 has a Quadratic degree.
Answer: 
Polynomial D :  3 x^5 + 2  is a Quintic binomial

Answer:

Option (c) is correct.

\(3x^5+2\) is a quintic polynomial.

Step-by-step explanation:

Given : some polynomial with different degrees.

We have to choose out of given options the polynomial that is Quintic binomial.

Quintic binomial is a binomial having highest degree 5. means a polynomial of the \(ax^5+bx^4+cx^3+dx^2+ex+f=0\) where the coefficient of \(x^5\) that is a ≠ 0.

Out of given option only option (3)  is a polynomial with highest degree 5.

Thus, \(3x^5+2\) is a quintic polynomial.