Read the following passage and answer the next five questions by choosing the correct options:

"This evening there is going to be a ball at the Embassy. The Countess will be there. We shall remain until two o'clock. You now have an opportunity of seeing me alone. As soon as the Countess is gone, the servants will very probably go out, and there will be nobody left but Swiss, but he usually goes to sleep in his lodge. Come about half-past eleven. Walk straight upstairs. If you meet anybody in the ante-room, ask if the Countess is at home. You will be told 'No', in which case there will be nothing left for you to do but to go away again. But it is most probable that you will meet nobody. The maidservants will all be together in one room. On leaving the ante-room, turn to the left, and walk straight on until you reach the Countess's bedroom. In the bedroom, behind a screen, you will find two doors: the one on the right leads to a cabinet, which the Countess never enters; the one on the left leads to a corridor, at the end of which is a little winding staircase; this leads to my room."

Hermann trembled like a leaf, as he waited for the appointed time to arrive. At ten o'clock in the evening he was already in front of the Countess's house. The weather was terrible; the wind blew with great violence; the sleety snow fell in large flakes; the lamps emitted a feeble light, the streets were deserted; from time to time a sledge, drawn by a sorry-looking hack, passed by, on the look-out for a belated passenger. Hermann was enveloped in a thick overcoat, and felt neither wind nor snow.

At last the Countess's carriage drew up. Hermann saw two footmen carry out in their arms the bent form of the old lady, wrapped in sable fur, and immediately behind her clad in a warm mantle, and with her head ornamented with a wreath of fresh flowers, followed Lizaveta. The door was closed. The carriage rolled away heavily through the yielding snow. The porter shut the street-door; the windows became dark.

Which event was the Countess going to in the evening?

a ball at the Embassy

The correct answer is Option (3) → a ball at the Embassy