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A conducting thick copper rod of length lm carries a current of 15 A and is located on the Earth's equator. There the magnetic flux lines of the Earth's magnetic field are horizontal, with the field of `1.3 xx 10^-4 T`, south to north. magnetic and direction of the force on the rod, when it is oriented so that current flows from west to east, are

A

`14 xx 10^-4 N,` downward.

B

`20 xx 10^-4 N,` downward.

C

`14 xx 10^-4 N,` upward.

D

`20 xx 10^-4 N,` upward.

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