ABCE model of flower development is also known as:
B fits best: Quartet model. Keep the ABCE & ABCDE MODEL +Synapdrgon flowering basics straight and Quartet model stands out as the precise answer. Avoid: A) Pressure-flow model; C) Operon model; D) Polycomb model. Light and flowering items often hinge on which photoreceptor or day-length rule is in play.
Ref: Best CSIR NET Plant Physiology books: Master Unit 6 with Taiz & Zeiger and Salisbury & Ross. Crack Part C experimental questions with top textbooks.