Step 1: Understanding the Concept:
Different dairy cattle breeds have specific geographical regions of origin which define their characteristics and adaptations.
Step 3: Detailed Explanation:
Let us examine the geographical origins of the given dairy cattle breeds:
1. Jersey: Originates from the Island of Jersey, located in the Channel Islands between England and France.
2. Ayrshire: Originates from the County of Ayr in southwestern Scotland. They are highly valued for their hardiness and efficiency of milk production under challenging grazing conditions.
3. Brown Swiss: Originates from the valleys and mountain slopes of Switzerland.
4. Guernsey: Originates from the Island of Guernsey, also located in the Channel Islands.
Thus, the breed originating from Scotland is the Ayrshire.
Step 4: Final Answer
The correct option is (B).