Many ornamental roses have sepals and multiple showy petals, but lack reproductive parts. Assuming that rose development follows the ABC hypothesis, which gene is most likely to be suppressed?

Question

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The ABC hypothesis of flower development explains the formation of the four types of floral organs through the interaction of three classes of genes: A, B, and C. The C gene promotes the development of reproductive parts (stamens and carpels). If a rose lacks reproductive parts, it suggests that the C gene is suppressed, allowing for the development of sepals (A gene activity) and petals (A and B gene activity) without the formation of reproductive organs.

Many Ornamental Roses Have Sepals and Multiple Showy Petals, but Lack