The correct option is D 2019-20
The tax calculation is done from 1st of April of one year to the 31st of March of the next year. Since, Anil left his job in february 2019, he doesn't have to pay tax for financial year 2019-20.
Please keep in mind that for the Financial year 2018-19 the Assessment year will be 2019-20 but this is not the Financial year for which the tax needs to be paid.