which of the following shows the polynomial below written in decreasing order 5x^3-x+9x^7+4+3x^11 HELLLPPPPPPPPPPPPP a.3x^11+9x^7+4+3x^11 b.4+3x^11+9x^7+5x^3-x c.3x^11+9x^7-x+4+5x^3 d.9x^7+5x^3+4+3x^11-x