I believe the correct answer would be false. Two waves that are moving in the same direction interfering in the same medium is called interference. A standing wave is a type of wave where each point on its axis is associated to a constant amplitude. This is also known as a stationary wave. The occurence of such wave was first recorded by Michael Faraday where he saw waves on the surface of a particular liquid in container that is vibrating. This happens because the medium is in motion such that it is opposite in direction to the wave where it can give rise to a stationary medium which is a result of the interference between the waves that are traveling in directions that are opposite.