The uploaded study guide identifies A. Marketing Cloud Personalization as the correct Salesforce capability for boosting B2C website engagement.

The requirement is specifically to improve business-to-consumer engagement on the website. Within the study guide's framing, Marketing Cloud Personalization is the capability aligned to tailoring digital experiences based on customer context and behavior.

Personalization can make an experience more relevant by changing which content, recommendations, or interactions are presented according to what is known about the user or their current context. Greater relevance can reduce the amount of irrelevant material a consumer must navigate and can increase meaningful engagement with the site.

Option B, Experience Cloud, is used for building external digital experiences and communities, but the question specifically asks which capability should boost B2C engagement through personalization.

Option C, Marketing Cloud Account Engagement, is not the answer selected for this B2C website scenario.

The UX distinction is between merely providing an external site and adapting that site's experience to the consumer. In the answer key, Personalization is the Salesforce capability that most directly addresses this objective.

Study Guide reference/topics: Marketing Cloud Personalization, B2C engagement, personalized experiences, website UX, Declarative Design.

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