(d) All statements are correct Qualitative reliability analysis involves techniques such as Failure Mode and Effects Analysis (FMEA), Fault Tree Analysis (FTA) which identify potential failure modes without numerical data. Quantitative reliability analysis involves statistical data and models to predict reliability numerically, like mean time to failure (MTTF) and failure rates. Reliability engineering focuses on designing, testing, and improving products and systems to ensure they perform reliably over time. Reliability management involves planning, organizing, and controlling activities to ensure reliability objectives are met during design, manufacturing, and operation phases.