How did merchants of the Mauryan Empire use the Khyber Pass? A. to sail over oceans
B. to cross over valleys
C. to travel through deserts
D. to travel through mountains

b. to cross over valleys

Explanation:

The Khyber pass, was a mountain pass that's located in Pakistan. Many historians -predicted that This pass was started to be used as trade routes by the Kushan Empire. Prior to that, this pass only used for military's purposes.

After that, The Mauryan empire also start using Khyber pass as their trade routes. It allows their merchants to reach the market in middle east (mostly Pakistan or Afghanistan) at a much faster time compared to using the conventional roads.

- "the four new england colonies of colonial america included colonies of new hampshire, massachusetts bay colony, rhode island and connecticut."

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2018 means 2018 ce or common era

there have been other eras too including bce, which included way more years.