A negatively charged rod is brought near the cap of a gold-leaf electroscope. The cap is earthed momentarily while the rod is near to it. The rod is then removed. Which of the following is correct?

• A.The cap will be positively charged and the negatively charged leaves will diverge
• B.The cap will be negatively charged and the positively charged leaves will diverge
• C.The cap and the leaves will be positively charged
• D.The cap and the leaves will be negatively charged.
• E.The leaves will not diverge because the cap has been earthed.