A construction company is analyzing which of its older projects need renovation. Building B was built two years before building C. Building D was built two years before building B. The product of building B's age and building D's age is at least 195. If x represents the age of building C, which inequality represents this situation? A x^2 + 8x + 16 ? 195B. x^2 +6x + 8 ? 195C. x^2 + 4x + 4 ? 195D. x^2 +42 ?195