Select the most appropriate option to fill in blank number 2.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. extinct.
The sentence is referring to animals that are no longer alive, whose remains are studied by palaeontologists. These are not just any animals, but animals from the distant past, such as dinosaurs.
The correct adjective to describe such animals is “extinct”, which means they no longer exist.
Palaeontologists study animals that have died out. This is why “extinct” is the most accurate fit for the blank.
Hence, the chosen option will be correct.