Approximately How Many Times in One Earth Year Does Mercury

Approximately how many times in one Earth year does Mercury appear at its point of greatest eastern elongation (e.g.,in the western sky at sunset) from Earth? (Review synodic period,Section 2-3 and Table 2-1,Comins,Discovering the Essential Universe,6th ed.)

A) twice
B) 4 times
C) once
D) 3 times