Who can hear Sarah speaking?

The answer is: Zeyad.

Based on the factual data provided, it appears that Ziad and Ahmed are able to hear Sarah speaking. The picture shows them playing with a string phone, and Sarah is talking, so both Ziad and Ahmed try to listen. Therefore, it can be concluded that both Ziad and Ahmed can hear Sarah speaking.

Both Ziad and Ahmed can hear Sarah talking because they are trying to listen. The photo shows them playing the string game of telephone together, so it makes sense that they would be able to hear Sarah talking. They're probably close enough to each other to be able to hear it, otherwise they wouldn't be trying to hear it in the first place.

Based on factual data, it is clear that both Ziad and Ahmed are trying to listen to Sarah speak. Both of them could hear it clearly. The picture shows them playing with a chain phone, which is a recreational toy. Sarah talks and they try to listen to her. Therefore, both Ziad and Ahmed can hear Sarah talking.