以下哪三項是大多數客戶能立即導入，以改進行銷策略的長期解決方案？

Enhanced conversions, Google Analytics 4 (GA4), and Consent Mode are long-term solutions that clients can implement immediately to improve their marketing strategies. Enhanced conversions improve the accuracy of conversion measurement by securely hashing and matching first-party data. GA4 is the future of analytics, offering a more comprehensive, event-based data model that provides deeper insights into user behavior across platforms, and it is replacing Universal Analytics. Consent Mode adjusts how Google tags behave based on user consent status, ensuring compliance with privacy regulations while still providing valuable measurement. Universal Analytics is a legacy product and is being sunsetted, making it a poor long-term solution. Google Firestack is not a recognized Google marketing product or solution.