Question

Which of these choices is a sign that a species' numbers are declining?

A. it has been removed from the list of endangered species.
B. its category has been changed form "endangered" to "threatened."
C. it has been placed on the list of endangered species.
D. it has been removed from the list of threatened species,

Answer 1

C: it has been placed on the list of endangered species.

Step-by-step explanation:

Answer 2

the answer is

C It had been placed on the list of endangered species

Step-by-step explanation: