What are the three core activities in lean startup customer discovery?

What are the three core activities in lean startup customer discovery?

• A. Formulating hypotheses about customers and problems, designing experiments, validating or pivoting based on feedback.
• B. Developing a business plan, securing funding, hiring staff.
• C. Hosting events, marketing campaigns, measuring brand awareness.
• D. Building a prototype, launching product, measuring profitability.

Answer: (A)