How is AWS readily distinguished from other vendors in the traditional IT computing landscape?

How is AWS readily distinguished from other vendors in the traditional IT computing landscape?

A. Experienced. Scalable and elastic. Secure. Cost-effective. Reliable B. Secure. Flexible. Cost-effective. Scalable and elastic. Global C. Secure. Flexible. Cost-effective. Scalable and elastic. Experienced D. Flexible. Cost-effective. Dynamic. Secure. Experienced.