What Did Johanne Paradis Find Was True with Regards to Children

What did Johanne Paradis find was true with regards to children who only spoke English versus children who were bilingual?

A) Bilingual children had better knowledge of English morphology
B) English-only speaking children had better knowledge of English morphology
C) Bilingual children and English-only speaking children had the same knowledge of English morphology
D) More research needs to be conducted to determine which group has better knowledge of English morphology