The botanical name of jute isA. Linum usitatissimumB. Corchorus capsularisC. Hibiscus sabdariffaD. Crotalaria juncea

The botanical name of jute is Corchorus capsularis.

Jute is a natural fiber that is obtained from the plants of the genus Corchorus, mainly Corchorus capsularis and Corchorus olitorius. These plants are grown for their fiber, which is used in making products like sacks, bags, and ropes.

The other options provided are:

Linum usitatissimum: The botanical name of flax, a different fiber plant.
Hibiscus sabdariffa: The botanical name of hibiscus, known for its flowers and used in herbal teas.
Crotalaria juncea: The botanical name of sunn hemp, a plant used for fiber and in agricultural practices.
Thus, the correct answer is B. Corchorus capsularis.