Question 7 (0.75 points) Which is not Familiar Connectives in First Order Predicate Logic? O or O iff not and Question 8 (0.75 points) Translate the following statement into First Order Predicate Logic (FOPL). "For every a, if a is a PhD student, then a has a master degree" Oi is False, ii is False Oi-Va PhD(a)-> Master(a) Oii- 3a PhD(a) -> Master(a) Oi is True, ii is True Question 9 (0.75 points) Forward chaining systems are are Goal-driven, goal-driven O Goal-driven, data-driven Data-driven, data-driven Data-driven, goal-driven where as backward chaining systems.