Algebra-1

A. 2x³ + 5x² - 3x + 1:
This polynomial has four terms, with the highest degree term being 2x^3. It also has a leading coefficient of 2. Therefore, option A is a 3rd degree polynomial with 4 terms and a leading coefficient of 2.

B. 3x⁴ - 2x³ + 4x² - 1:
This polynomial has four terms, but the highest degree term is 3x^4, which is a 4th degree term instead of a 3rd degree term. Therefore, option B is not a 3rd degree polynomial with 4 terms and a leading coefficient of 2.

C.

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