In Delta A B C , D and E are points on...

In `Delta A B C` , `D` and `E` are points on side `A B` and `A C` respectively such that `D E ` is parallel to `B C\ ` & `A D : D B=3:1` . If `E A=3. 3 c m` , then `A C=` mmmmmmmm (a) `1. 1 c m` (b) `4c m` (c) `4. 4 c m` (d) `5. 5 c m`

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