Question: In E-UTRA uplink multi-antenna transmission, which of the following statements about antenna configuration and transmit diversity is INCORRECT?
Option 1: SU-MIMO (Single User - Multiple Input Multiple Output) is supported in uplink.
Option 2: MU-MIMO (Multi User - Multiple Input Multiple Output) is supported for downlink only.
Option 3: Both closed loop and open loop types of adaptive antenna selection transmit diversity are supported.
Option 4: Transmit diversity for control formats is only supported by the MAC (Media Access Control) layer.
Explanation: The physical layer supports transmit diversity of some control formats, indicating this functionality is handled at the physical layer, not exclusively or at all by the MAC layer as Option 4 incorrectly suggests.