Error spotting — Choose the erroneous segment (A/B/C) or D if correct: 'I am hearing / a lot about / the problem of AIDS these days. / No error.' Test correct tense/aspect for general reports vs. ongoing action.

Concept/Approach (stative verb & aspect)
'Hear' is typically a stative verb when it means 'receive news/information'. For repeated reports over a period, use the simple present ('I hear') or present perfect progressive ('I have been hearing') rather than the present continuous used as a mere habitual.

Step-by-step correction
A: 'I am hearing' → 'I hear' / 'I have been hearing' (with 'these days').Corrected example: 'I have been hearing a lot about the problem of AIDS these days.'

Common pitfalls
Overusing the -ing form with stative verbs (know, believe, understand, hear in the sense of 'get news').

Final Answer
A — Replace with 'I hear …' or 'I have been hearing …'