Authentication factors are the factors that describe about the ingenuition or origination of the user. This is the tag that tells about the actuality of user that is getting connected with internet by the five elementals.
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The European plug takes up 220 volts while the American one takes 110 volts.
In Parallel option A is true
Because In parallel circuit, the voltage across each components is same and the total current is sum of the currents through each component.