Bleach detergent ammonia what property do all three of these common household substances have in common? a) they are all acidic. b) they all taste sour. c) they all have a ph above 7. d) they all turn litmus paper red.

Well, all of the items listed above are bases which mean that they all have a pH above 7.0.

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

Ithink it is a. but i'm not 100 percent sure.