High School

Choose the correct simplification of [tex]\left(4x^3 - 3x - 7\right) + \left(3x^3 + 5x + 3\right)[/tex].

A. [tex]7x^3 - 2x - 4[/tex]

B. [tex]x^3 - 8x - 10[/tex]

C. [tex]7x^3 + 2x - 4[/tex]

D. [tex]x^3 + 8x + 10[/tex]