Final answer:
Without specific software context, it is difficult to definitively answer, but right-click is a common interface action for adding or editing steps in many software applications, which could include creating a taper.
Step-by-step explanation:
To create the second step of a taper in a software or technological context, you would typically use either a drag or specific tool option. The options given seem to suggest a software or a graphical user interface context. The correct option for creating a second step in a tapering process might vary depending on the specific software or function being used, but generally, a right-click is often used to open context menus which could include options to add steps or modify objects. In the absence of context, it's challenging to give a definitive answer, but right-click would be a reasonable choice for a variety of software applications.