Concept:
When two designations refer to the same person, the subject is treated as singular. Here, "The President and Chief Executive" refers to one individual holding both positions.
Step 1: Identify the subject.
"The President and Chief Executive of the Company" is a single person with two titles.
Step 2: Choose the correct singular verb.
Since the action is in the past tense ("arrived"), the appropriate auxiliary verb is was.
Step 3: Check the options.
• was -- correct singular past form.
• has been -- does not fit the sentence structure.
• has -- incomplete.
• being -- grammatically incorrect here.
\[
\boxed{\text{was}}
\]