Jenny 希望改善品牌情绪。就领英而言，她应该考虑哪些先行指标？请选择所有适用选项。

To improve brand sentiment, Jenny should focus on leading indicators that reflect audience engagement and interaction with her content. Video views, clicks, and social engagement (likes, shares, comments) are all direct measures of how users are interacting with and responding to her brand's presence on LinkedIn. Increased positive interaction suggests improved sentiment. Frequency and reach are important metrics for content distribution and visibility, but they are not direct indicators of brand sentiment. High frequency or reach doesn't guarantee positive sentiment; content could be seen widely but still generate negative or neutral reactions.