Read the excerpt from The Ancient City. The Greeks used a very light elder-wood javelin for athletics, with a throwing loop which made the javelin spin in flight, keeping it on course. Greek sources suggest that throws of 90 to 100 metres (295 to 328 feet) were possible.

Why does the author use the words "very light elder-wood” to describe the javelin? Check all that apply.

to show why the javelin could travel so far
to share where the javelin was made within Greece
to compare it to other countries’ javelins
to explain what the javelin was made from
to demonstrate the javelin’s throwing technique