The Neuropsychological Data Suggest That There Are

The neuropsychological data suggest that there are:

A) Distinct lexical systems for reading and writing, but listening and speaking use the same lexical system
B) Distinct lexical systems for listening and speaking, but reading and writing use the same lexical system
C) No distinct lexical systems; reading, writing, listening, and speaking use the same lexical system
D) No distinct lexical systems for speaking and writing, but distinct lexical systems for reading and listening
E) Distinct lexical systems for reading, writing, listening, and speaking