Answer: a Steam Locomotive.
<h2>What is a Steam Locomotive?</h2>
"<em>A steam locomotive is a type of railway locomotive that produces its pulling power through a steam engine."</em>
<h2>What is the Tom Thumb?</h2>
"<em>Tom Thumb was the first American-built steam locomotive to operate on a common-carrier railroad."</em>
-Edge
A) they were too weakened to fight against fresh British forces
The Battle of Bunker Hill took place on June 17, 1775, just a few months after the start of the American Revolutionary War.
