Proteins of the Src family (e.g. Src, Fyn, Lck, and Hck) have important roles in several signaling pathways in mammals. A typical Src family protein ...

A) is a cytosolic tyrosine kinase.
B) contains SH2 and SH3 domains in addition to a kinase domain.
C) has covalently attached lipid chains.
D) is located on the cytoplasmic side of the plasma membrane.
E) All of the above.