C.I-student

Hey guys, recently I have been assigned a task in College to design a flying drone (its requirements are that it must be 6ft long/wide) but i dont know enough about drones/flying RC to start designing. For example, what type of battery should i design my drone to run off of, what size the motherboard (etc), what propellers and propeller engines i should use, should the engine be electric or gas powered if the drone will have to have a dimension of 6 ft, what material the frame of my drone should be made of when i design, basically everything regarding the best materials and the best design processes and best practices i should take into account when i design my drone,
I hope you can help!

thanks,

Connor