Which of these is NOT a conjunction?

the service industry in the united states grew in the late 1800s. what was one effect of that growth?

the number of people with jobs in factories as unskilled workers decreased.

the number of people with jobs in factories as unskilled workers increased.

the middle class grew as people took jobs as clerks, lawyers, and teachers.

the middle class shrank as people left jobs as clerks, lawyers, and teachers.

you stated "which of the following" but i don't see anything else

1) correct answer: general clinton hoped that general burgoyne could him.

2. correct answer: “when they heard box 342 rung, however, they assumed the fire was out of their territory and unhitched the horses. only two fire companies were not fooled by the misleading alarm.”

3.) correct answer: generals were able to send secret messages to each other using a mask.