The correct answer is: C. 15.
Tally is a free and open-source desktop application for creating and analyzing statistical charts and tables. It is used by businesses, governments, and individuals to track and analyze data.
Tally has 15 pre-defined groups:
- Age
- Gender
- Occupation
- Education
- Income
- Marital status
- Religion
- Ethnicity
- Nationality
- Political affiliation
- Social class
- Health status
- Disability status
- Sexual orientation
These groups can be used to create charts and tables, or they can be customized to create new groups.
Option A is incorrect because there are 15 pre-defined groups, not 28.
Option B is incorrect because there are 15 pre-defined groups, not 30.
Option D is incorrect because there are 15 pre-defined groups, not 19.