Mark the alternative that presents the Factual or Zero Conditional: If air expands, it becomes lighter. If Mary arrives early today, we will go to ...

Mark the alternative that presents the Factual or Zero Conditional:
If air expands, it becomes lighter.
If Mary arrives early today, we will go to the shopping mall.
If you study more, you will pass the exam.
If I had won the lottery, I would have bought a Ferrari.
If air expands, it becomes lighter.
John will see Frank, if he


a. If air expands, it becomes lighter.
b. If Mary arrives early today, we will go to the shopping mall.
c. If you study more, you will pass the exam.
d. If I had won the lottery, I would have bought a Ferrari.
e. If air expands, it becomes lighter.