Plants which live for only one season in a year such as wheat, sunflower, mustard, rice, pea, etc. are known as _________.
The correct option is B. annuals.
Annual plants:
Plants that can live for a single season in a year are called annuals as they grow only once annually. Examples: wheat, sunflower, mustard.
The biennials are plants that only live twice in a year while the perennial plants are those which live throughout the year.