Match the items as follows:
A. HMT (Hindustan Machine Tools): As a prominent Public sector company in India, A corresponds to II.
B. Milk union: Representing a Co-operative society, milk unions like Amul mean that B corresponds to IV.
C. Fixed capital: Including assets like a Building, fixed capital means that C corresponds to I.
D. Regional market: Limited by geography to areas like a Town, a regional market means that D corresponds to III.
The correct matches are: A-II, B-IV, C-I, D-III.