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David performed the following mathematical operation:
2x + 3
x + 3)2x2 + 9x + 9
He was left with a remainder of zero. Which of the following statements must be true?
• A. -3 must be a root of the polynomial 2x2 + 9x + 9.
• B. 3 must be a root of the polynomial 2x2 + 9x + 9.
• C. = must be a root of the polynomial 2x2 + 9x + 9.
• D. ¿ must be a root of the polynomial 2x2 + 9x + 9.