According to the Text,a Tradable Benchmark

According to the text,a tradable benchmark:

A) is a broad market index that represents 90% of the share market capitalisation.
B) may be a performance benchmark index but with a narrower focus upon which some derivative contracts are priced.
C) is a broad market index that represents 99% of the share market capitalisation.
D) is an index that measures changes in share prices plus reinvestment of dividends.