Class D gene mutants stk/shp1/shp2 show:
Absence of normal ovules (C) is correct here. This is core ABCE & ABCDE MODEL +Synapdrgon flowering: once you know the definition or pathway step, Absence of normal ovules is the clear fit. The wrong ones are A) Normal ovules; B) Extra ovules; D) Leaf-like carpels. If the topic is about gradients or potentials, water/solutes move from higher to lower of the relevant quantity.
Ref: Best CSIR NET Plant Physiology books: Master Unit 6 with Taiz & Zeiger and Salisbury & Ross. Crack Part C experimental questions with top textbooks.