• WHERE, COLLECT
• WHERE, CONCAT
• WHERE, SIMILAR TO
• WHERE, LIKE

The correct answer is: WHERE, SIMILAR TO

Explanation: To filter records based on the presence of a string within a column’s values in AMC queries, you can use the WHERE clause together with the SIMILAR TO function in SQL syntax. This combination allows pattern matching and conditional filtering.

Reference content: From the official Amazon Marketing Cloud documentation SQL reference (When available, this page outlines SQL support, including the use of WHERE and SIMILAR TO for pattern matching):

“…WHERE and SIMILAR TO can be combined to pattern-match and filter rows where a column contains, or matches, a given string or regex pattern. SIMILAR TO is supported for advanced matching in AMC SQL queries.”