Error spotting (exam direction): Identify the erroneous part (A/B/C) — choose D if there is no error — 'I am much pleased / to know that / you have topped the list. / No error.'

Given sentence parts (A–D)
A. I am much pleasedB. to know thatC. you have topped the list.D. No error.

Concept/Approach (degree adverbs with adjectives)
With adjectives like 'pleased', the natural collocation is 'very pleased' or 'quite pleased'. 'Much pleased' is archaic/unnatural in modern standard usage.

Step-by-Step correction
1) Replace degree adverb: 'much' → 'very'.2) Correct sentence: 'I am very pleased to know that you have topped the list.'

Verification/Alternative
'Much obliged' is idiomatic, but 'much pleased' is not.

Common pitfalls
Extending the pattern of 'much' to adjectives where it is not idiomatic.

Final Answer
A — 'I am much pleased' → 'I am very pleased'.