Let a1 and a2 be two arithmetic means and g1, g2, and g3 be three geometric means of two distinct positive numbers. Then g41 g42 g43 g21g23 is equal to: a) g1⁴ * g2⁴ * g3⁴ * a1² * a2³ b) g1⁴ * g2⁴ * g3⁴ * a1³ * a2² c) g1⁴ * g2⁴ * g3⁴ * a1² * a2² d) g1⁴ * g2⁴ * g3⁴ * a1³ * a2³