Which sentence uses the most precise language?
a: with so many steps in the instructions, we didn't know what to do next.
b: with multiple steps in the instruction manual, we were unsure of the solution when the wheel detached from the bicycle.
c: with so many steps in the instruction manual, we didn't know what to do after the wheel fell off the bike.
d: with many steps in the instructions, we were unsure of our next step after the wheel fell off the bicycle.