In the context of monitoring a Spark application to optimize performance, you suspect data skew is affecting your application's efficiency. Data skew can lead to longer processing times for some tasks, impacting overall job performance. Considering the need for a cost-effective solution that ensures compliance with data processing standards and scalability for large datasets, how would you use the Spark UI to identify and diagnose data skew issues within your application? Choose the best option from the following: | Databricks Certified Data Engineer - Professional Quiz