Practice question

Correct option is B, COP1–SPA1. In PSS-Sec-E-Sensory biology problems like this, the accurate statement is COP1–SPA1; the others are common mix-ups. Not these: A) BRI1–BAK1; C) FT–FD; D) GID1–DELLA. Tissue transport questions usually turn on xylem vs phloem, living vs dead cells, or source vs sink.