Seed maturation involves accumulation of storage reserves and:
Correct option is C, LEA protein expression. In Phytohormone ALL problems like this, the accurate statement is LEA protein expression; the others are common mix-ups. Not these: A) Increase moisture; B) Decrease ABA; D) GA dominance. Tissue transport questions usually turn on xylem vs phloem, living vs dead cells, or source vs sink.
Ref: Best CSIR NET Plant Physiology books: Master Unit 6 with Taiz & Zeiger and Salisbury & Ross. Crack Part C experimental questions with top textbooks.