What Is the Difference Between Specific Language Impairment (SLI) and Pragmatic

What is the difference between Specific Language Impairment (SLI) and Pragmatic Language Impairment (PLI) ?

A) SLI cannot be accounted for by subtle neurological abnormality whereas PLI is accounted for by brain damage
B) SLI is a disorder of speaking that is explained by hearing impairments but PLI cannot be explained by hearing impairments
C) SLI is apparent with children's delay in mastering the basic rules of grammar whereas PLI is a disorder in the social use of language
D) A child with SLI will have difficult forming the past tense or the plural form of verbs whereas a child with PLI would have no problem in understanding common words
E) A child with SLI has specific difficulty in processing language whereas a child with PLI has specific difficulty in processing spatial information