您的客户迫不及待地想要开始实行隐私保护策略。为积极应对可能会影响数据收集方式的隐私保护变化，他们可以立即采取下面哪一项行动？

Enhanced conversions allow advertisers to improve the accuracy of their conversion measurement by securely sending hashed first-party customer data from their website to Google. This helps to recover lost conversions due to privacy changes and cookie restrictions, providing a more complete picture of campaign performance. The other options are less immediate or effective for proactively addressing privacy changes: developing third-party ad inventory (B) doesn't directly address data collection changes; relying on complex manual systems like ad network-based remarketing (C) may become less effective with privacy changes; and cross-device tracking initiatives (D) are often directly impacted by stricter privacy regulations.