DavidG@VeritasPrep wrote:

saswata4s wrote:Tides typically range from three to six feet, but while some places show no tides at all, some others, such as the Bay of Fundy, have tides of at least thirty feet and more.

A. some others, such as the Bay of Fundy, have tides of at least thirty feet and more
B. the others, such as the Bay of Fundy, that have tides of more than thirty feet
C. others, such as the Bay of Fundy, have tides of more than thirty feet
D. those at the Bay of Fundy, which has tides of more than thirty feet
E. the ones at the Bay of Fundy have tides of at least thirty feet and more

OA: C.

The phrase "at least thirty feet and more" contains a redundancy, as "at least thirty feet" suggests the possibility of taller tides. No need for "and more." Eliminate A and E.

"While some places show no tides at all..." creates the expectation of an independent clause that will contrast with "some places show no tides." B and D don't contain an independent clause, but rather a noun phrase followed by a relative clause. (A relative clause is one that begins with a relative pronoun, such as "that" or "which." )

We're left with C. The contrasting clauses: "While some places show no tides at all.... others have tides of more than thirty feet."