What is the verb phrase in the following sentence? For hundreds of years, the Miller family has been growing wheat in the little village of Smithville.

A.
the Miller family
B.
in the little village
C.
has been growing
D.
For hundreds of years

Silverpoint is a. a technique using the blackish residue of impure carbon obtained by removing water from animal and vegetation substances. b. a technique involving the use of a metal point, and a thin silver wire, popular in the 14th and 15th centuries. c. a printmaking technique born from crayon manner that imitates the appearance of chalk lines. d. a technique used since the 16th century involving a stick filled with either colored or black graphite, a heated mixture of carbon and clay