Requirements within the preceding 6 months of intended flight for a valid night rating are
well first of all the the options are incorrect as they mention 5 take offs and landings and this rule is applicable to PPL holders
for CPL holders it is 10 take offs and landings in last 6 months
and regarding sole manipulator thing
well if you see my all the refernces which i have given at the end of this post (one of ppl and 2 of cpl), in all of them u can find that to have the night rating valid you just need to do certain take offs and landings thats it in previous 6 months
the sole manipulator thing comes into play when you are applying for a fresh application of night rating, at that time you need to have 5 take offs and landings as sole manipulator in last 6 months (check ppl reference)
PPL
CPL
CPL