Full Detailed In-Depth Explanation:

Contextual Journeys in Oracle Global Human Resources Cloud provide relevant guidance or tasks based on the user’s current context within the application. Per the "Using Journeys" guide, these journeys are displayed in page or section headers, appearing dynamically when a user is on a relevant page (e.g., during a promotion process, a Contextual Journey might appear in the transaction header). This distinguishes them from Guided Journeys, which are accessed via the Journeys tile. Option A (only on Thursdays) is nonsensical and incorrect. Option B (Quick Action) relates to transaction initiation, not Contextual Journeys. Option D (Journeys tile) applies to Guided Journeys, not Contextual ones. Thus, Option C is correct.