Which two options must be true to use open optimization? (select two)

Open optimization requires specific conditions to function. Firstly, in "Step 3: Manage Rules," the rotation setting must be explicitly set to "Optimized." This tells the system to use its optimization algorithms to determine which creative to serve. Secondly, for optimization to occur, there must be more than one eligible row in the dynamic feed. If only one row is eligible, there's no choice for the system to optimize, making the optimization setting irrelevant. The option about including "optimize" in a feed cell is incorrect; optimization is configured in the platform, not within the feed data itself. Similarly, the statement that only one row must be eligible is incorrect, as it contradicts the fundamental need for choice in optimization.