A student performs two separate charging experiments using identical, initially uncharged electroscopes and identical negatively charged rods. In Experiment 1, the negatively charged rod touches the knob of Electroscope 1 and is then removed. In Experiment 2, the negatively charged rod is brought near the knob of Electroscope 2 without touching, the electroscope is briefly connected to a ground, the ground wire is disconnected, and then the rod is moved far away. Which choice correctly gives the sign of the final net charge remaining on Electroscope 1 and Electroscope 2?