Some fabrics build up more charge than others because 1.they are better insulators 2.they are worse insulators 3.they are better conductors 4.none of the above

Some fabrics can hold more charge

this ability to hold the charge is due to the nature of object which will not allow the charge to flow out of the system

now we can say that if an object is good insulator then it must hold large charge on it as charge will not conduct out from that system

So the correct answer in this case must be

1.they are better insulators

0.93xc=0.93x3x10^8m/s

2.54cm is 1 inch

360seconds i 1 hr