If you put each of the possible answers in the blank and read the sentence the right answer would be C.
Answer:
cause at that time almost everything was natural nothing was a mixture of anything but now we don't know weather the thing is natural or not or is it mixed with something else also
for eg in earlier times fruits were grown naturally but now they r being injected to grow faster which is not natural and might cause us problems in future but the ppl in past didn't
B, as this is a real theme of a book a instead of examples of what could be happening in the book.
Answer:
if you say things the right or wrong way they can provoke or inspire people
Explanation:
