Medical experts predict that the number of unnecessary deaths in nursing homes
will rise if the elderly resident ratio in public facilities were more numerous than ten residents for every one staff member.
a. will rise if the elderly resident ratio in public facilities were more numerous than
b. will rise if the ratio of elderly resident ratio in public facilities is greater than
c. should rise if the elderly resident ratio in public facilities were more numerous than
d.would rise provided the ratio of elderly residents in public facilities is more than
e.would rise if the ratio of elderly residents in public facilities is more numerous than
If you study, you will score highly. - present simple, + will + infinitive
If you studied, you would score highly. - past simple, + would + infinitive
If you had studied, you would have scored highly. - past perfect, + would have + past participle
The only option in the question above which comes in accordance with this rule is B