Answer: Option C
The Janata Dal was a political party in India that was formed in 1988 by the merger of several smaller parties, including the Janata Party. The party was a prominent force in Indian politics in the late 1980s and early 1990s and played a significant role in the national government during this period.
In 1989, the Janata Dal formed a coalition government at the center with V.P. Singh as the Prime Minister. However, this government did not last long and collapsed in 1990 due to internal differences and political instability.
Following the collapse of the V.P. Singh government, the Janata Dal formed a new coalition government with Chandra Shekhar as the Prime Minister in November 1990. Chandra Shekhar was a prominent Janata Dal leader and had been the Deputy Prime Minister in the previous government.
However, the Chandra Shekhar government also faced numerous challenges and was eventually defeated in a vote of confidence in March 1991. The Congress party, led by Rajiv Gandhi, won the subsequent general elections and formed the government at the center.
In conclusion, the Janata Dal is the political party that provided two Prime Ministers in two years' time. The party formed coalition governments at the center in 1989 and 1990 with V.P. Singh and Chandra Shekhar as Prime Ministers, respectively. Despite their short tenure, these governments played a significant role in shaping the political landscape of India in the late 1980s and early 1990s.