Question

ratchet wrench
the ratchet wrench combines the convenience of a ratchet with the compact design of a box end wrench in one tool. this type of wrench does not need to be taken off and repositioned over the bolt or nut; the hexagonal (or double - hexagonal) center of the ratchet wrench can be rotated relative to the handle.
a bolt or nut can be quickly loosened or tightened, because the mechanism locks in only one direction to transfer force. ratcheting can be reversed by either flipping over the wrench, or by activating a reversing lever.
1
how can you identify a ratchet wrench?
the box - end of the wrench has a ratcheting mechanism.
the open - end of the wrench has a ratcheting mechanism.
the box - end of the wrench always has a lever to reverse direction.

Explanation:

The text states that the ratchet wrench combines the convenience of a ratchet with the compact design of a box - end wrench. It implies the ratcheting mechanism is at the box - end. There is no mention of the open - end having a ratcheting mechanism or the box - end always having a reverse - direction lever.

Answer:

The box - end of the wrench has a ratcheting mechanism.