THE/ IT/ CONSTITUTES/ MODERN/ MINGLING/ OF/ THREE/ ENGLISH/ IS / LANGUAGES/ THAT

4. The/ it/ constitutes/ modern/ mingling/ of/ three/ English/ is / languages/ that.

A. It is the modern English that constitutes the mingling of three languages.

B. It is three languages that constitutes the mingling of modern English.

C. It is the modern mingling of three languages that constitutes English.

D. It is the mingling of three languages that constitutes modern English.