The advisers propose that the plan _______ postponed for a few weeks.

A．If clouds are high, there will be bad weather.
B．The color of clouds is a factor to help predict the weather.
C．If the weather is good, the clouds must be very low.
D．To study clouds is the only way to understand the weather.

A．to get on a car and drive off
B．getting on a car and drove off
C．get on a car and drive off
D．get on a car and drove off