[单选题]
At twice the distance from a point charge, the strength of ths.ou;-p2q5k cshgzr0n l2t6r1 mh (qre elec(kk9 ymi) yt8 52e,1eq*wabg qznqm .ztric field
A. is four times its original value.
B. is twice its original value.
C. is one-half its original value.
D. is one-fourth its original value.
