Blue whales may be returning to the oceans of Alaska and British Columbia. For much of the twentieth century, the species was endangered. By the 1930s, 99 percent of the blue whale's population had been killed. Whale hunting was banned in 1966. However, the species' comeback has been slow. Blue whales have rarely been seen in Alaskan waters. Some researchers believe that recent sightings prove the animals are re-establishing an old migration route. Other researchers remain unconvinced that the whales ever stopped traveling the waters. Blue whales once migrated in large numbers from Mexico and California to Alaska.

Do It!

The blue whale population is _________.

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A enclosed
B multiplying
C surrendering
D confused

A enclosed

A multiplying

To determine the population status of blue whales, more information is needed. However, based on the given passage, it can be inferred that the blue whale population is slowly recovering or increasing. The passage mentions that the species was endangered in the twentieth century, with 99 percent of the population killed by the 1930s. Since then, hunting has been banned, and there have been recent sightings suggesting that the whales may be re-establishing their migration route. Therefore, the correct answer is B) multiplying.