Your data analytics team runs massive SQL queries on BigQuery. The CFO has noticed that BigQuery costs are spiraling out of control because analysts are running SELECT * queries on petabyte-scale tables. Which THREE strategies should you implement to optimize BigQuery costs? (Select THREE)

BigQuery's on-demand pricing charges based on the amount of data scanned during a query. `SELECT *` scans the entire table. To optimize costs, you must reduce the data scanned. Partitioning (by date) and Clustering (by frequently filtered columns) allow BigQuery to prune data and only scan the relevant blocks. Setting Custom Quotas (maximum bytes billed) acts as a financial circuit breaker to stop analysts from accidentally spending thousands of dollars on a single bad query.