State the usage of Past Perfect tense: Talgat was happy because he had won the competition.

Варианты ответа

1. A.for action which finished before another past actionверно
2. B.for actions which happened at specific time in the past
3. C.for personal experiences or changes
4. D.for actions which happened at unstated time in the past
5. E.for actions which started in the past and continue up to the present