A clustered bar chart displays the quarterly revenue (in millions USD) for three different product lines (Product A, Product B, Product C) over the past year (Q1, Q2, Q3, Q4). Product A shows revenues of 10, 12, 15, 18; Product B shows 8, 9, 11, 13; Product C shows 14, 13, 12, 11. Which product line experienced consistent quarter-over-quarter growth throughout the year, and what was its total annual revenue?
✓ Correct Answer: Option A
Product A (10 -> 12 -> 15 -> 18) shows consistent growth. Its total annual revenue is 10+12+15+18 = $55 million. Product B also grew consistently but has lower total revenue. Product C declined.