a fossil that is common, widely found in many areas and only lived in one time period\nindex fossil\nindex…

a fossil that is common, widely found in many areas and only lived in one time period\nindex fossil\nindex card\nstock index\nindex finger

a fossil that is common, widely found in many areas and only lived in one time period\nindex fossil\nindex card\nstock index\nindex finger

Answer

Brief Explanations:

An index fossil is common, widely - distributed, and from a single time period. An index card is for note - taking, a stock index is for financial markets, and an index finger is a body part.

Answer:

A. Index Fossil