3
Select the correct answer.
excerpt from "Shoes: Feet First!"
from A History of Travel in 50 Vehicles
by Paula Grey & Phillip Hoose
wite the relatively recent age of the early shoes found to date,
tists believe that humans were wearing shoes as much as
Do years ago, Shoes made of reeds, papyrus, or even leather
mpose easily, leaving few or no traces. But people who don't
shoes have wider feet and bigger gaps between their big
nd the other four. In studying bones of the smaller toes of
lized skeletons, scientists observed that the thickness of
bones decreased somewhere between 40,000 and
Do years ago. They believe the change was the result of
ing shoes
Read this sentence again,
In studying bones of the smaller toes of fossilized skeletons, scientists observed that the thickness of these bones decreased
somewhere between 40,000 and 26,000 years ago.
How does the sentence develop the author's claim in the passage?
ОА.
It shows how the scientists made their conclusions about what materials were used to make shoes.
OB.
It explains why the thickness of bones decreased in fossilized skeletons.
Ос.
It explains why people used reeds and papyrus to make their shoes.
It shows how the scientists made their conclusions about when people began wearing shoes.
OD.
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