This question runs in a pre-configured Salesforce environment - no personal connection required.

Write a SOQL query that returns Account Names from a given country, sorted by Name in ascending order. If the country parameter is null or empty, or if no accounts are found, return an empty list.

The method should query accounts using the BillingCountry field and sort the results alphabetically by Name.

Examples:

Input: country = "USA" Output: ["Account A", "Account B", "Account C"] Explanation: Returns all account names from USA, sorted alphabetically Input: country = "Germany" Output: ["German Account"] Explanation: Returns the single account from Germany Input: country = null Output: [] Explanation: Returns empty list for null country Input: country = "" Output: [] Explanation: Returns empty list for empty country Input: country = "NonExistentCountry" Output: [] Explanation: Returns empty list when no accounts match
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