In which year floods posed threat to the Bhuntar runway?

The correct answer is: C. 2007.

In 2007, floods posed a threat to the Bhuntar runway. The floods were caused by heavy rains that caused the Beas River to overflow its banks. The floods damaged the runway and caused it to be closed for several days.

The other options are incorrect. In 1995, there were no major floods in the area. In 1998, there were some floods, but they did not pose a threat to the Bhuntar runway. In 2008, there were also some floods, but they were not as severe as the floods in 2007.