What is fractional crystallization? what is fractional crystallization? melting of part of a rock, leaving behind solid rock with the same composition as the original magma melting of part of a rock, leaving behind solid rock with a different composition from the original magma crystallization of part of a magma, leaving behind melted rock with a different composition from the original magma crystallization of part of a magma, leaving behind melted rock with the same composition as the original magma

This is the answer: body 1 + engine 2

Good moring let me you on this question the answer the electric force  have a good day ; )

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