For a picking task, the system must determine the storage types from which to remove...

Comprehensive and Detailed In-Depth Explanation:

The storage type search sequence for stock removal in SAP EWM is determined systematically. Option A ("The system attempts to read the combination of warehouse number and stock removal indicator, then it uses the combination of warehouse number and warehouse process type") is correct, as defined in SPRO: SCM Extended Warehouse Management > Goods Issue Process > Strategies > Define Storage Type Search Sequence. The system first checks the stock removal indicator (e.g., FIFO) with the warehouse number, then falls back to the process type if needed. Options C and D mention an "access strategy," which is not a standard EWM term in this context.