Concept: The Second Republic began when military rule ended and a new civilian government was inaugurated.Explanation:The First Republic was overthrown by the military in 1966.After several years of military rule, a new constitution was introduced.Elections were held, and the Second Republic officially started in 1979.It continued until it was ended by another military coup in 1983.Therefore, the beginning year of the Second Republic is 1979.Answer: B. 1979