Question

Which statment is not true?

Answer 1

Statement B and statement D are correct statements, so they can never be answered. 
Statement C is also an accurate statement, as parallel lines can not intersect and any two parallel lines decide a plane. [Rule for defining planes] 

So, Statement A is the only wrong statement in above options. 
Not only planar but, any two intersecting lines also decide a plane. 
That means intersecting lines can also be in one plane. 

Answer: Statement A is NOT TRUE in above statements.