Name and briefly describe these three filling methods: numeric, geographic, and alphanumeric.
A) Numeric: Filling with numerical values; Geographic: Filling based on geographic locations; Alphanumeric: Filling with a combination of letters and numbers.
B) Numeric: Filling with alphabetical characters; Geographic: Filling based on geological formations; Alphanumeric: Filling with only numbers.
C) Numeric: Filling with numbers and letters; Geographic: Filling based on geographical coordinates; Alphanumeric: Filling with random characters.
D) Numeric: Filling with geographical locations; Geographic: Filling based on numbers; Alphanumeric: Filling with a mix of numbers and letters.