for 1614 please see this link https://auditguru.in/question/the-answer-to-mcq-1614-seems-to-be-option-a-however-option-c-has-been-given-as-the-answer-please-clarify/
for 1634 yes clause 7 and clause 8 are close, as per past decided cases they applied 8 here, as a general rule where ever there is insufficient evidence prefer 8 over 7, we have covered this case in 8 in our note and gave 7 as alternative answer