Which Type of Molecule is Ricin?

Question

Which type of molecule is ricin?​
A) ​protein
B) ​lipid
C) ​nucleic acid
D) ​carbohydrate
E) ​mineral

Accepted Answer

Ricin is a protein that is derived from the seeds of the castor oil plant, Ricinus communis. It is a potent toxin that inhibits protein synthesis.

Which type of molecule is ricin?​