听力原文：M: Rebecca, did you hear Radio broadcasting that temperatures have today reached

a record 102 degrees and may well hit 110 tomorrow？

W: I heard that, Aaron, but it's not surprising actually, because we haven't had as much rain as normal this year.

M: Much more distressing, experts say, is that a drought has set in remarkably early and shows no sign of letting up soon ... The ground is still parched from last year's drought -- crops, plants and trees are being crippled at their most vulnerable time.

W: Yes. The drought conditions are severe! There's a lot of death, dying and suffering out there!

M: Well, if it could rain even a drop, things would be much better! And my flowers in the garden would come back in a heartbeat.

W: I guess you might have to quit watering your garden. I heard that they are going to start rationing water. In fact, this morning I happened to hear on the radio that the reservoir had dipped below half its capacity this month and the volume of water entering the reservoir is the smallest in fifty years.

M: Really! I thought that might happen. Great! There go my vegetables!

W. I guess so. But think about Africa.

Which of the following statements is true, according to the conversation？

A．It is the worst drought they have ever had.

B．It is the second worst drought for many years.

C．It is the second year they suffer from drought.

D．It is the worst season for them to have drought.