Question

read the paragraph, then choose the word that best completes the sentence.
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 whales 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.
the blue whale population is ________.
a multiplying
b enclosed
c surrendering
d confused

Explanation:

El texto dice que las ballenas azules pueden estar regresando a los océanos de Alaska y Columbia Británica. Además, menciona que la especie está teniendo un "comeback" (vuelta), lo que sugiere que la población está aumentando. La palabra "multiplying" significa aumentar en número, lo que coincide con la idea de un regreso de la población.

Answer:

A. multiplying