Final answer:
The relationship between the 'movie' and 'rating' tables in an ERD after 3NF is typically one-to-many (1:M). This is because one movie can have multiple ratings, but each rating is specific to only one movie.
Step-by-step explanation:
The relationship between the tables movie and rating in an Entity-Relationship Diagram (ERD) after applying the third normal form (3NF) typically represents a one-to-many (1:M) relationship. In this scenario, a single movie can have multiple ratings from different users, but each rating is associated with only one movie. This means that the movie table will have a primary key that uniquely identifies each movie, and the rating table will have a foreign key that references the primary key in the movie table.
The relationship is not one-to-one (1:1) since a movie can have more than one rating, nor is it many-to-many (M:N) without an associative entity to resolve the relationship. Also, it is not zero-to-one (0:1) as this would imply that a movie might not exist without a rating, which is not the case. Therefore, the correct answer would be c) 1:M, which represents that one movie can have many ratings.