Which SRDF/A feature keeps sessions active in the event of a temporary link loss?

A.
Transmit Idle

B.
Group-level Write Pacing

C.
Write Folding

D.
Multi-Cycle Mode

Explanation:
http://www.emc.com/collateral/hardware/technical-documentation/h4118-srdfa-srafa-multi-sessnconstncy-zos-tb.pdf (page 98, SRDF/A Transmit idle)