please help with this

Answer:
C
Step-by-step explanation:
You combine like terms and then order them according to their exponents (order)
Since the 4 has a negative but is going to get subtracted it becomes positive and therefore added
2[tex]x^5[/tex] +(7x³ + 4x³) - 5x² = 2[tex]x^5[/tex] + 11x³ - 5x²