Refer to the input text as context and select the correct relationship between 'Boeing' and 'Dennis Muilenburg' from the available options.
Options: original broadcaster, product/material produced, brand, chief executive officer

But, with Alibaba's Jack Ma sitting on his left and Boeing (NYSE: BA - news ) chief Dennis Muilenburg to his right, Xi also pushed for some quid pro quo from his American hosts to help Chinese firms expand in the United States.
chief executive officer