While reviewing survey data, an analyst notices respondents entered "Jan," "January," and "01" as responses for the month of January. Which of the following steps should be taken to ensure data consistency?

A. Delete any of the responses that do not have "January" written out.
B. Replace any of the responses that have "01".
C. Filter on any of the responses that do not say "January" and update them to "January".
D. Sort any of the responses that say "Jan" and update them to "01".