Combine the following sentences into a single compound sentence:

O The gauge was below E. Archie worried he would run out of gas. Betty worried, too.

O Archie and Betty worried they would run out of gas because the gauge was below E.

O The gauge was below E, which made Archie and Betty worry that they would run out of gas.

O The gauge was below E; consequently, Archie and Betty worried they would run out of gas.

O Since the gauge was below E, Archie worried he would run out of gas, and so did Betty.​