What type of drawing is described in the following scenario? A television commercial for a new car shows an image of the car’s body and frame, and the image is rotating so that you can see the top, front, and side of the car.

isometric drawing
oblique drawing
orthographic drawing
perspective drawing

Implement a document scanning function wordcountengine, which receives a string document and returns a list of all unique words in it and their number of occurrences, sorted by the number of occurrences in a descending order. if two or more words have the same count, they should be sorted according to their order in the original sentence. assume that all letters are in english alphabet. you function should be case-insensitive, so for instance, the words “perfect” and “perfect” should be considered the same word.