Emily is a CPA working for an AICPA member firm. She works for the audit department, but has been assigned to work on an investigation project for a non-audit client. Which professional standards apply? Group of answer choices Neither SSFS No. 1 nor GAAS apply to this engagement. Both GAAS and SSFS No. 1 apply to this engagement. GAAS applies to this engagement. SSFS No. 1 applies to this engagement