Based on the sentence below, identify the key idea:
"Because the coffee machine was broken, I had to stop at a café on my way to work."
ABecause the coffee machine was broken
Bstop at a café
CI had to stop at a café on my way to work
Don my way to work
"Because the coffee machine was broken, I had to stop at a café on my way to work."
ABecause the coffee machine was broken
Bstop at a café
CI had to stop at a café on my way to work
Don my way to work