Company: Alphabet Inc.

Alphabet Inc., the parent company of Google, disclosed its financial results for the fiscal year ending December 31, 2023. The company reported total revenue of $300 billion, with a cost of goods sold (COGS) of $100 billion and operating expenses of $120 billion. Net income stood at $50 billion. From this data: a) Calculate the gross profit margin. b) Determine the operating profit margin. c) Compute the net profit margin. d) Assess the return on assets (ROA) if the company's total assets amount to $1 trillion.