Tactics as like [a] lowering prices, [b] expanding output beyond a short run profit maximizing level, and [c] aggressively advertising or redesigning existing products to make them incompatible along with rivals’ products are most likely to be interpreted as illustrations of: (w) limit pricing strategies. (x) increasing sunk costs to discourage entry. (y) predatory behavior. (z) contestable markets.
Can someone explain/help me with best solution about problem of Economics...