[单选题]
An originally neutral elec dpxfr0 n.zgs o89:m ove*9tu1troscope is br d*6pslh8 u:caiefly touched with a positively charged glass rod. 6: d8sh *uaplc The electroscope
A. remains neutral.
B. becomes negatively charged.
C. becomes positively charged.
D. could become either positively or negatively charged, depending on the time of contact.