What responsibilities did the Merarite clans have according to Numbers 3:20?

- The boards (frames) of the tabernacle

- Its crossbars

- The posts (pillars)

- The bases (sockets)

- All equipment related to these items

- The posts of the surrounding courtyard with their bases

- The tent pegs and ropes for the courtyard (Numbers 3:36-37; 4:29-33)