Question

1. carte de visite

a. carte de visite were like business cards with a type answer here and name.
b. these cards were exchanged at events for recognition.
c. they were affordable and widely used.

Explanation:

Carte de visite (19th-century calling cards) typically included a small portrait photograph along with the holder's name, functioning like early personal/business cards for identification and social recognition.

Answer:

photograph (or portrait photograph)