How many times does the earth spin in a year

It spins one bc it takes 365 days to make a year and to make a year the earth has to mov some

It takes 365 days to a year to fully spin around once

It's because 3 if it was 10 it wouldn't look right do it goes up to 4d

Ohm's law tells you that i = v/r where v is equivalent voltage and r is equivalent resistance of the circuit
since all circuits have the same voltage, your question is really asking which circuit has the lowest total resistance, since the lower the resistance, the higher the current
circuit a has a resistance of 5 ohms; circuit c is in series so has a resistance of 10 ohms; circuit b is in parallel and therefore has a resistance of 2.5 ohms (review your notes on adding resistances in parallel and series); therefore b has the highest current