Company G developed a shopping App. The system is constructed based on Alibaba Cloud products. They use Elastic Compute Service (ECS) instances and object Storage Service (OSS) in North China 1region, and store static web pages and images on OSS.

Company G developed a shopping App. The system is constructed based on Alibaba Cloud products. They use Elastic Compute Service (ECS) instances and object Storage Service (OSS) in North China 1region, and store static web pages and images on OSS.

After the App went online, the access speed in mainland China is acceptable. Recently, the company decided to expand to the U.S. market and requires an acceptable access speed too for U.S. users. To address this requirement, company G should select Alibaba Cloud ___service. (Single answer)
A . Enabling object Storage Service (OSS) in West US region with Content Delivery Network (CDN) in North China 2 regions
B. Enabling Object Storage Service (OSS) in North China 1 region with Content Delivery Network(CDN)accelerating West Us(Silicon Valley) region
C. Enabling Auto Scaling and more Elastic Compute Service(ECS) instances
D. Enabling Auto Scaling and Content Delivery Network(CDN)

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Answer: B