We show that a discriminatively trained， multi-layer capsule system achieves state-of-the-art performance on MNIST and is（）than a convolutional net at recognizing highly overlapping digits.

We show that a discriminatively trained， multi-layer capsule system achieves state-of-the-art performance on MNIST and is（）than a convolutional net at recognizing highly overlapping digits.
A.much well
B.well
C.more better
D.considerably better
正确答案：considerably better