To a certain extent,
However, I agree that
You have provided a response sentence for 2 different discussion prompts in the task 2 essay. The former, is for the extent essay prompt. The latter, is the one that applies to this essay, without the "However" part. Kindly familiarize yourself with the response formats for each prompt type. You will lose points in this case because, by providing 2 thesis responses, you are telling the reviewer, quite clearly, that you did not understand the question and, are not sure about how to respond to the question. Hence, a failing score will have to be provided.
It is argued that
Please note that there is no argument or discussion provided in this essay so the word choice is incorrect. There is a single idea presented in the original topic which, should have been presented as a thought to the examiner, in order to follow the correct prompt restatement format. By arguing, you are again, showing incorrect interpretations and an additional deduction source for the LR section due to incorrect word usage.