Sentence Correction (SC) | Attempts to change the types of food served in elementary school cafet

Attempts to change the types of food served in elementary school cafeterias, a primary goal of the National Health Board, has not substantially altered the nutritional contentpresented in the average school lunch.

A. has not substantially altered the nutritional content presented
B. has not been substantial in altering the nutritional content present
C. have not substantially altered the nutritional content present
D. has not made a substantial alteration in the nutritional content present
E.
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