Progressive and stationary waves

Medium

Which row is correct?

Phase relationship: $X$ is in phase with $Y$ ; Amplitude relationship: $X$ has a smaller amplitude than $Z$

Phase relationship: $X$ is in antiphase with $Y$ ; Amplitude relationship: $X$ has a smaller amplitude than $Z$

Phase relationship: $X$ is in antiphase with $Z$ ; Amplitude relationship: $X$ has the same amplitude as $Z$

Phase relationship: $X$ is in phase with $Z$ ; Amplitude relationship: $X$ has the same amplitude as $Y$

Progressive and stationary waves Questions