Hi,
In case of one option correct out of many options given type of question, if a student clicks on one option by mistake and then wants to erase the click (not attempt) that question at all while submitting, then how does he/she do such seemingly simple thing in an easy way. I know that the option can be changed easily but that is another thing.
In case of cloze it appears rather easy as there is a blank option besides the usual a, b, c, d etc.
Manish.