A. magnanimous
B. lenient
C. vehement
D. general
Stringent : (of regulations, requirements, or conditions) strict, precise, and exacting.
Magnanimous : generous or forgiving, especially towards a rival or less powerful person.
Lenient : (of a punishment or person in authority) more merciful or tolerant than expected.
Vehement : showing strong feeling; forceful, passionate, or intense.
General : affecting or concerning all or most people or things; widespread.
Antonym of Stringent is Lenient