• (A) It is the position in a sentential form where the next shift or reduce operation will occur
• (B) It is non-terminal whose production will be used for reduction in the next step
• (C) It is a production that may be used for reduction in a future step along with a position in the sentential form where the next shift or reduce operation will occur
• (D) It is the production p that will be used for reduction in the next step along with a position in the sentential form where the right hand side of the production may be found