Which of the following is an example of formal learning?

The HRPA Learning and Development taxonomy distinguishes formal learning (planned objectives, structured content, defined roles, and assessment) from informal learning (spontaneous, self-directed, social). Structured on-the-job programs (e.g., planned rotations, apprenticeships, or SOP-based training with coaching and evaluation) meet formal criteria. Ad hoc problem-solving, internet searching, and casual peer assistance (A, B, D) are informal.

References (HRPA): Professional Competency Framework—Learning and Development (design and delivery of formal learning, on-the-job training structures); HRPA Study Guide—formal vs. informal learning definitions and examples.