The sentence given with blanks is to be filled with an appropriate word. Four alternatives are suggested for each question. For each question, choose the correct alternative and click the button corresponding to it.
Disagreements are not inherently bad because they allow ________ discussion of new information and difference perspectives on old ones.
The third option is the answer. The other options beside for, do not hold proper meaning for the given blank. 'An' is the wrong article to be used, 'some' does not fit in grammatically and 'to' does not follow with discussion and rather it does with discuss.
Thus, for is the right word for the given blank.