If A = i + 2j + 3k, B = 2i + 4j + 7k and...

If A = i + 2j + 3k, B = 2i + 4j + 7k and C = 2i + 3j + 5k are collinear, then the ratio in which B divides `bar(AC)` is

A

2 : 1 externally

B

2 : 1 internally

C

4 : 1 externally

D

4 : 1 internally

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A

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