Comprehensive and Detailed Step-by-Step Explanation: Aligning IT with business strategy ensures that IT investments provide value and support business objectives. * Option A (Incorrect):While senior management involvement is essential, it is abyproductof alignment rather than the primary goal. * Option B (Correct):Themain purposeof alignment is tooptimize IT investmentsby ensuring that IT initiatives directly support business needs, reducing waste and improving ROI. * Option C (Incorrect):Risk awareness is important but is not theprimaryreason for IT-business alignment. * Option D (Incorrect):Monitoring IT effectiveness is part of governance but not the main objective of IT-business alignment. Reference:ISACA CISA Review Manual -Domain 1: Information Systems Auditing Process- Covers IT governance, strategy alignment, and value realization.