GMAT Sentence Correction (SC) | Re: The new image of Stone Age people as systematic hunters of

Solved using POE :

Point 1 : "as systematichunters of large animals" should be followed by"scavengers " to maintain parallelism
Hence A & B are out because of"scavenging"

Point 2 : "three wooden spears" represents the "tools", which is plural, hence the usage should be "include/including".
Hence C &D are out

Ans : E
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