Light travels through space at a speed of 3.0 × 108 m/s. A space probe is traveling at 2.5 × 108 m/s when one of its spotlights is turned on. What speed would an observer on Earth measure for the light from the spotlight? A.
3.0 × 108 m/s

B.
5.5 × 108 m/s

C.
0.5 × 108 m/s

D.
The speed would depend on whether the probe is moving toward or away from Earth.

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

The answer would be d. hope this :

This  kingdom  is  made  up of species that  do  not really easily fit into other kingdoms such as the plant, animal,and  fungi  kingdom. some protists, such as the paramecium  and  amoeba, feed  on  other  organisms  while others such as algae are able to  make their own food  through the process of photosynthesis.