The words enjoyable, maneuverable, corruptible, and convertible best illustrate which of the following principles?
A. The spelling of a suffix can vary depending on its root word.
B. The accented syllable of a root word can shift when certain suffixes are added to it.
C. The addition of a suffix can alter the spelling of its root word.
D. The pronunciation of a suffix can change when added to certain root words.