Stanovich Uses the "Matthew Effect" to Describe Which Phenomenon

Stanovich uses the "Matthew effect" to describe which phenomenon?

A) The skilled reader gets better through practice while the poor decoder lags further behind.
B) The poor reader figures out words he or she does not know only by guessing.
C) The reader who dislikes reading develops an increasingly negative attitude toward reading.
D) The poor reader receives more attention from the teacher than the skilled reader.