I am positive the answer is B let me know if i am wrong and ill correct it
1. change they're to their
2. change an a
3. delete the comma after workhouse
4. add a comma after computer
5. change too to to
For most people, work is the center of life.
It is the main supplier of money that they could use to buy food, pay their bills, or to use for enjoyment. All those things combined will make people afraid of discarding their work.