Q. Pick out the wrong statement about a streamline.

• (A) It is always parallel to the main direction of the fluid flow
• (B) It is a line across which there is no flow and it is equivalent to a rigid boundary
• (C) Streamlines intersect at isolated point of zero velocity and infintie velocity
• (D) The fluid lying between any two streamlines can be considered to be in isolation and the streamline spacing varies inversely as the velocity