Leonard designed a parallel circuit to light two light bulbs. but his circuit doesn’t work. which two items in the circuit must be addressed for the lightbulbs to light as planned

I hope this helps. I took the test and got a 100 percent.

Explanation:

In a parallel circuit, the voltage across each of the components is the same, and the total current is the sum of the currents through each component.

If two or more components are connected in parallel they have the same potential difference ( voltage) across their ends. The potential differences across the components are the same in magnitude, and they also have identical polarities. The same voltage is applicable to all circuit components connected in parallel.

If each bulb is wired to the battery in a separate loop, the bulbs are said to be in parallel.

If you can't realy see the picture, this is the answer.

The bottom right and the far left.