Einstein's theory of general relativity is currently the best explanation of gravity. What is likely to happen to this theory in the future?
A. It will be replaced by a new theory if enough evidence is collected.
O B. It will be replaced by a new theory if popular opinion changes.
O C. It will remain the best explanation, because no one has come up
with a better one yet.
D. It will remain the best explanation, because Einstein's name is so
well-known.

Ithink the answer is c but then again i'm probably wrong

Answer(b) 60 miles per hour;

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