Frank is from atlanta and maria tuberto barbero is from ciudad de méxico. they became pen pals and communicate by phone because they love to talk in addition to communicate through emails.

how would frank dial maria's phone numbers when he talks to her?
what would be the correct way to dial her?
- 800-010-332-1
-55 99 01 72 85
-505 979 01 72 58
- 34 972 50 59 03

55 99 01 72 85

Explanation:

Phone numbers in the Federal District Mexico City and the surrounding metropolitan area are 10 digits long, including the two digit area code followed by the eight digit phone number. The area code for Mexico City is 55.

However, if the person is dialing from the USA, he would have to dial the exit code to call outside the country (011 in the US) + 52 (Mexico country code) + 55 (Mexico city area code) + 8 digit phone number.