Is this for K12? it depends because the answers are differentt for each place.
Answer:
a- Animals do not react positively to human products being tested on them as they are used to determine faults and any harm.
b- the human products often contain harmful chemicals in testing stages on animals which can lead to genetic disorders
c- because there is no definitive answer which is why they're testing to find our what is going to harm the humans
The best choice is option one, although that is not fully correct. But because an author is present, the name comes first.
'with the spots' - is an adjective phrase because it determine the noun puppy with wich it grant.
