There were so many people on the bus that Sally couldn’t get a seat.

The answer is NO

“There were so many people on the bus that Sally couldn’t get a seat.”

A. is grammatically incorrect (corrected as: The bus was too crowded for Sally to get a seat.) ⇒ structure too: S + be + too + adj + (for O) + to V…

B. The bus was so crowded that there was nowhere for Sally to sit. ⇒ structure: S + be + so + adj + that + a clause (so… that …)

C. incorrect grammar (corrected to: So crowded was the bus that Sally couldn’t get a seat) ⇒ inversion with so: so + adj + be + S + that +…

D. wrong meaning (The crowded bus did not prevent Sally from getting a seat.) ⇒ structure: prevent sb from doing sth: prevent someone from doing something