Definition: In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".
Input: [header] How to update nod32 [title] Launch the eset nod32 antivirus program on your windows computer. [title] Click on " update " within the left toolbar on nod32. [title] Click on " check for updates. <sep> (A) [step] The program will search for any available updates. [title] Click on " install " below the field labeled " product update. (B) [step] The button will appear to the right of the nod32 keyword search box. [title] Click on " auto-start ". (C) [step] Nod32 will open on the main menu, showing the " updates " notification box. [substeps] You will find the eset antivirus program listed in this list. (D) [step] " [title] Confirm the update by typing " windows ". [title] If you have the requested updates, click " next ".
Output:
A