Step 1: Understand the sentence.
The sentence describes a business situation where Pepsi Cola has gained control over the entire soft drink market. The word required should reflect market dominance.
Step 2: Analyze the options.
Conquered is generally used for military or territorial control, not appropriate for business context.
Swallowed suggests taking over another company, not a market.
Captured is commonly used in business English to mean gaining control or a large share of a market. This fits perfectly.
Occupied is used for physical space, not markets.
Step 3: Conclusion.
Therefore, the correct word is captured, as it accurately describes gaining control of a market.