Essay Query important

[Memf]

Hi seniors,
I'd like to ask is it okay to disagree with the stance given in a statement? For instance, if the topic is, "The UN has failed to libe upto the demands of its Charter" can one's thesis be that the UN has not failed?
And is it important to stick to one stance from the beginning to the end or should both sides be considered?
Thanks

[Arsala Hussain Bubak]

U can disagree to the statement and will have to show it in the very first paragraph. You can give your arguments at one point only.

[Memf]

Thank you. However, some topics require two sides to be considered like CPEC-blessing or bane?
So if my stance is that it is a blessing, do I have to completely ignore the banes/challenges of CPEC? Doesn't that make my essay kind of incomplete?