"as more professional players used the bats, more autographed models were made."

which of the following definitions of the word model is being used in the above sentence?

1. a person or thing that serves as a subject for an artist, sculptor, author, etc.

2. a style or design of a particular product

3. a person employed to wear clothing or pose with a product for purposes of display and advertising.

4. a representation, generally in miniature, to show the construction or appearance of something.

definition #1

definition #2

definition #3

definition #4