Answer A is written incorrectly because obstinacy means to be stubborn and if you put that in the sentence, it makes no sense.
D, Recycling helps in conservation of natural environmental resources
Answer: to inform readers about the inconsistencies in Iqbal’s story, and to persuade them that what is more important is Iqbal’s impact on the fight to end child labor
Explanation:
To convince customers that the bank is reliable and trustworthy