Company: Alphabet Inc.

Alphabet Inc., the parent company of Google, released its financial results for the fiscal year ending December 31, 2023. The company reported total revenue of $400 billion, with a cost of goods sold (COGS) of $150 billion and operating expenses of $150 billion. Net income stood at $60 billion. From this data: a) Calculate the gross profit margin. b) Determine the operating profit margin. c) Compute the net profit margin. d) Analyze the return on assets (ROA) if the company's total assets amount to $1 trillion.