Add the following polynomials:
(−x^3 + 26x^2 − 7x − 13) + (6x^4 − x^3 +8x + 27)
Answer choices:

6x^4 −2x^3 + 26x^2 −15x + 14

−6x^4 + 26x^2 + x + 14

6x^4 +26x^2 −x − 14

6x^4 −2x^3 + 26x^2 +x + 14