Diagnosed with a brain tumor

Ahmad had been diagnosed with a brain tumor. He went from being a successful business person with a happy and stable family life to someone who could not hold a job and had to be in the custody of a sibling. Elliot could not live appropriately in a community because he now lacked social intelligence. When Elliot returned from the hospital, people did not recognize him. He could not follow a schedule, motivate himself enough to get dressed in the morning, and was incapable of making the most basic of decisions. He took hours to decide what to eat at a restaurant but then would make big financial decisions impulsively.

Questions:

Which specific structure did the tumor involve?

In which lobe is it located?