Answer:
Option B, A threatened species means that the population is likely to become endangered. An endangered species has population numbers so low that it is likely to become extinct.
Step-by-step explanation:
A threatened species is the one which if not taken care of will become endangered soon. for example - Pacific Walrus, Leatherback Turtle, Javan Rhinoceros, Magellanic Penguin, Mountain Gorilla etc.
While an endangered species is at a higher critical condition as compared to a threatened species. An endangered species if not taken care of will become extinct soon. For example - Sumatran Elephant, Vaquita, Tiger, Saola etc.
Hence, option B is correct