In the book of Zechariah, there are several symbolic visions. What does the vision of the two olive trees beside the golden lampstand (Zechariah 4:1-14) primarily represent?

A The abundant blessings God will pour out on His people in the future. B The dual role of the king and high priest in rebuilding the temple and restoring Israel. C The two witnesses who will prophesy during the end times. D The importance of agriculture and the prosperity it brings to the land.