Assertion : Aquaspirillum magnetotacticum contains magnetosomes.
Reason : Magnetosomes help the bacteria to orientate themselves along geomagnetic lines.
(a) If both A and R are true and R is the correct explanation of A
(b) If both A and R are true but R is not the correct explanation of A
(c) If A is true but R is false
(d) If both A and R are false.
