Sophie 正在设计广告素材。制作领英广告素材时，她应考虑哪些要点？请选择所有合适选项。

When designing LinkedIn ad creatives, incorporating negative space helps reduce clutter and draw attention to key elements. Using surprising or unexpected imagery can capture audience interest and increase engagement. Employing clear fonts ensures readability, which is crucial for conveying the ad's message effectively. Finally, utilizing bold, contrasting colors and shapes makes the ad visually striking and helps it stand out in a user's feed. All these elements contribute to creating effective and engaging ad creatives on LinkedIn.