Rainforests __________ and burned at such a speed that they will disappear from the earth in the near future.

A．cut

B．are cut

C．are being cut

D．had been cut

下列对下图中“孝子”行为的认识，正确的是[ ]

A．“孝子”履行了赡养扶助母亲的义务

B．“孝子”为母亲解决了后顾之忧

C．“孝子”能为母亲着想，对母亲有孝心

D．“孝子”没有很好地履行赡养父母的义务