If the lines are coplanar, then k can have :
exactly three values
any value
exactly one values
exactly two values
As we learnt in
Condition for lines to be intersecting (cartesian form) -
Their shortest distance should be 0
Also the condition for coplanar lines
-
Fo coplaner lines we have
We have two values.
Option 1)
exactly three values
This option is incorrect
Option 2)
any value
This option is incorrect
Option 3)
exactly one values
This option is incorrect
Option 4)
exactly two values
This option is correct
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