The advantages of combinations are
1. elimination of inter-firm competition.
2. ensuring smooth continuous supply of raw materials.
3. saving on middle men's margins.
4. ensuring larger control over the market.
Of the advantages given above, which ones are applicable to horizontal combinations?

A. 1 only

B. 1 and 2 only

C. 2 and 3 only

D. 1 and 4 only

Answer: Option D