The audit engagement team at Abernathy and Chapman consists of a partner- in-charge, a manager, a senior auditor, and one or more staff auditors. A consulting partner is also assigned to the audit. Who is responsible for determining whether the firm's signature can be attached to the audit report?

a) The consulting partner

b) The audit manager

c) The president of Abernathy and Chapman

d) The partner-in-charge

e) The audit committee chairman