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Explanation:

Here,

We have to find the equivalent resistance of the circuit.

Here, and are connected in series, so their combined resistance will be given by,

Now, the combined resistance of and is connected in parallel combination with , so their combined resistance will be given by,

Reciprocating both sides,

Now, the combined resistance of , and is connected in series combination with . So, equivalent resistance will be given by,

Henceforth, Option A is correct.

Here, we have to find the amount of flow of current in the circuit. By using ohm's law,

V = IR

3 = I × 3.33

3 ÷ 3.33 = I

0.90 Ampere = I

Henceforth, Option B is correct.

answer: a. same unit

explanation: