Saudi Arabia became wealthy after it developed its oil. This country has the largest known reserves of oil ___ the world.
a. in
b. for
c. with
d. over

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Which is the best way to join the sentences below using a proper relative pronoun to make one concise sentence.
The woman is in hospital.
Her car crashed last week.
A. The woman whose car crashed yesterday is in hospital.
B. The woman who car crashed yesterday is in hospital.
C. The woman whom car crashed yesterday is in hospital.
D. The woman which car crashed yesterday is in hospital.
