Which statement about uncountable nouns is false?

a.
uncountable nouns do not typically take a regular plural form, except in special circumstances.
b.
uncountable nouns include words like grass, wood, sand, and weather.
c.
uncountable nouns can never be replaced with pronouns.
d.
uncountable nouns refer to nouns which usually are not individually counted.

How does this excerpt develop the central idea that espionage during the civil war was often carried out by untrained citizens? it enhances the reader’s understanding by explaining why training was unnecessary. it changes the reader’s perception of what information a spy was able to obtain. it explains an ordinary person’s motivation for conducting espionage against the enemy. it adds moral complexity to espionage, due to the use of secret and dangerous methods.