The noun in this sentence which is uncountable, meaning that it names something that cannot be counted is the noun water.
You cannot count how many waters there are - it is uncountable. The other nouns, students and pitcher are countable, so they cannot be the correct answers, but rather water is.
That he defeated the British during the revolutionary war
I'm pretty sure it's <span>A. To encourage others to buy more horses and land</span>
