Akira sewed one button back on his jacket. then, another one falls off when he put it on to go outside. which correction of the underlined verb fixes the inappropriate shift in tense in the second sentence? will fall has fallen fell had fallen

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.