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Find the angle between the lines whose direction cosines are given by the equations `3l + m + 5n = 0` and `6mn - 2nl + 5lm = 0`

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Find the angle between the lines whose direction cosines are given by the equations `3l + m + 5n = 0` and `6mn - 2nl + 5lm = 0`
A. `cos^(-1)((-1)/(6))`
B. `cos^(-1)((1)/(2))`
C. `cos^(-1)((-1)/(3))`
D. `cos^(-1)((1)/(3))`
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Correct Answer - A
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