Choice quiz step can't be made

[ekmakhlina]

Lines 72-93: looks like data for choice quiz should be rewritten, as post request with this data returns fields error 'Expected key is_options_feedback'

[ekmakhlina]

line should 87 be changed from

                               'preserve_order': False

into

                                'preserve_order': False,
				'is_options_feedback': False