I STAYED UP LATE LAST NIGHT, AND I AM TIRED NOW.A. IF I DIDN’T STA...

77. I stayed up late last night, and I am tired now.

a. If I didn’t stay up late last night, I wouldn’t be tired now.

b. If I hadn’t stayed up late last night, I wouldn’t have been tired now.

c. If I didn’t stay up late last night, I wouldn’t have been tired now.

d. If I hadn’t stayed up late last night, I wouldn’t be tired now.