Silking is the reproductive stage that may be observed in the following crops:

Correct option is B

✅ What is Silking?
Silking is a reproductive stage specific to maize (corn).
In this stage, silks (elongated stigmas) emerge from the cob and catch pollen for fertilization.
Other Crops:
❌ Cotton – Flowering and boll formation stages
❌ Rice & Wheat – Have panicle emergence and anthesis; silking is not a term used
Importance:
Timing of silking is critical for grain yield in maize.
Occurs around R1 stage in maize growth.