Which of the following defines the underlined phrase in the sentence below?

pepper, (a common spice), makes foods hot.

appositive
gerund
participial
adverbial

what do you mean

each morning i wrote my name

on the dusty cabinet, then crossed

the dining table in script, scrawled

in capitals on the backs of chairs,

practicing signatures like scales

while mother followed squirting

linseed from a burping can