I'm afraid none of those is correct. The correct option would be subspecies. Subspecies are different variations, one could say, of a same organism.
Hope it helped,
Happy homework/ study/ exam!
Answer:
C, water pollution Contributes to water scarcity :>
No it does not follow a pattern
The best that applies in the given statement are :
<span>1) They make challenging concepts easier to understand.
2) They illustrate complex concepts that are hard to picture.
3) They increase the level of interest in the information.</span>