What two circuits one series and one parallel use light bulbs to provide resistance. Both circuits have the same number of light bulbs?

What two circuits one series and one parallel use light bulbs to provide resistance. Both circuits have the same number of light bulbs?
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Series circuit gives higher resistance compared to parallelcircuit.
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For a parallel connection of light bulbs, which of the following statements is correct? w) The resistance of each light bulb must be the same. x) If one goes out they all go out. y) Each of the light bulbs operates independently.

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A circuit has a resistance of 200 ohms. The resistance of the circuit can be reduced to 120 ohms by adding which of the following to the circuit. w) 80 ohm resistor in series x) 150 ohm resistor in parallel y) 240 ohm resistor in series z) 300 ohm resistor in parallel

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