After making camp at Valley Forge in Pennsylvania, Washington's troops increased in number because a large group of reinforcements joined.
increased in number because Spain and France sent troops to support the American
efforts.
were reduced in size after men died from disease and exposure to the harsh winter.
were reduced in size because many men were tired of fighting the war and went
home

Hey there! I'm happy to help!

The time at Valley Forge was not pretty. It was extremely cold which made it very hard to function well. There was also a ton of disease spreading as well, so the correct answer.

So, after making camp at Valley Forge in Pennsylvania, Washington's troops were reduced in size after men died from disease and exposure to the harsh winter.

Have a wonderful day! :D

it was the shinto. the answer is c.