To answer this question we need to know what both types of waves have in common. For them we describe the characteristics of each wave
Mechanical waves:
* Transport energy
* They need a means to spread (they do not spread through space)
* Only some of us can hear them
* They follow a pattern
Electromagnetic waves
* Transport energy
* They do not need a means to spread
* We can not hear them
* They follow a pattern
The characteristics that both have in common is that they transport energy (but in different mediums) and that they follow a pattern. Therefore, the correct option is:
"Carry energy" and "Follow a pattern"