Refer to the following Aircraft$\_$I relation, from the relational schema designed for the datat$)$ase of the Fun Travel Aircraft Company, which rents aircrafts for local private travels. The relation includes the aircraft number $($AC$\_$NUM$),$ model $($AC$\_$MODEL$),$ rental charger per hour $($AC$\_$RENT$\_$CHG$),$ number of seats available $($AC$\_$SEATS$)$ and the total time in hours the aircraft was flying to the date $($AC$\_$TOTAL$\_$TIME$).$ The Primay Key for the relation is AC NUM. Analyze the data in the relation and identify the Functional Dependencies $($FD$)$ that exist. $(06$ marks$)$ b$)$ In which Normal Form $($NF$)$ is the relation Aircraft$\_$I in$?$ Justify your answer. $(07$ marks$)$ c$)$ If the relation Aircraft$\_$I is not in the $3$NF$,$ normalize it into a relation in $3$NF$.$ Show each step of the normalization process clearly and provide any justifications.