Which track contains all fields of Track 2 plus the cardholder's name and is up to 79 characters long?

The correct answer is Track 1, as this magnetic stripe data format includes all the fields found in Track 2 but also adds the cardholder's name. Track 1 data can contain a maximum of 79 characters, which allows for additional information such as the cardholder's name.

In contrast, Track 2 does not include the cardholder's name; it primarily stores numeric account information formatted differently. Track 3 and Track 4 are less commonly used and serve specific purposes—Track 3 is generally used for additional data like an expiration date and Track 4 may be used for specific applications beyond standard payment processing, but they do not contain the same structure as Track 1 or Track 2 regarding cardholder identification.

Therefore, Track 1 is distinguished by its inclusion of the cardholder's name along with additional characters, emphasizing its comprehensive nature in the context of magnetic stripe data.