Sentence Correction (SC) | Standard & Poor's, publisher of the greatly followed S&P 500 Index

Standard & Poor's, publisher of the greatly followed S&P 500 Index for US stock market, has changed the composition of the index by adding companies fromupcoming industries like healthcare and ecommerce; this makes the index more balanced than before.

A. upcoming industries like healthcare and ecommerce; this makes the index more balanced than
B. upcoming industries like healthcare and ecommerce, making the new index more balanced than the index
C. upcoming industries such as healthcare
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