In the context of the input sentence, determine the relationship between 'Zenefits' and 'Parker Conrad'.
Options: product/material produced, chief executive officer, distribution format, owner of

The startup already has more than 10,000 small business customers, serving over 100,000 total employees in 48 states.“Zenefits’ mission is to make it effortless for small businesses to manage their companies and employees," Zenefits cofounder and CEO Parker Conrad said in a statement.
chief executive officer