Question

which meeting is scheduled at the start of week #1 in the sprint cycle? sprint retro; stand up; sprint planning meeting; sprint review meeting

Explanation:

In the Scrum framework (used in Agile software development, related to project management which can fall under Business or Social Science - Construction Project Management subfield here), the Sprint Planning Meeting is held at the start of a sprint (including Week #1 of the sprint cycle) to plan the work for the sprint. Daily Stand - Ups are daily, Sprint Review is at the end of the sprint, and Sprint Retro (assuming the first option is Sprint Retro, though text is a bit unclear) is also post - sprint or at the end. So the Sprint Planning Meeting is scheduled at the start of Week #1 in the sprint cycle.

Answer:

Sprint Planning Meeting