Option 1: Funnel. The outer part of the ear, also known as the pinna, is shaped like a funnel. It is the visible part of the ear that helps to collect sound waves and funnel them into the ear canal.
Option 2: Plate. This option is not correct. The outer part of the ear is not shaped like a plate.
Option 3: Drum. This option is not correct. The drum refers to the eardrum, which is not the outer part of the ear.
Option 4: Disc. This option is not correct. The outer part of the ear is not shaped like a disc.
In conclusion, the correct answer is option 1, funnel, as it accurately describes the shape of the outer part of the ear.