Answer:
Option (b) make-to-stock, assemble-to-order.
Explanation:
The reason is that the department A manufactures the product not B which means the make to stock is the primary function of Department A only. Once the necklaces are ready the Department B is ordered by the Department A to print names which is order dependent task and not associated with manufacturing (is associated with assembling). Hence the is the primary function of Department B is Assemble-to-order.