Chess Opening Theory/1. d4/1...Nf6/2. c4/2...c5/3. Nf3

= Symmetrical English=

3. Nf3
This line is often played to avoid the theoretical complications of the Benoni. If black plays cxd4, it resembles a Sicilian, where e4 is replaced with c4, and may transpose into Sicilians which allow a Maroczy Bind such as the Accelerated Dragon. Black may also play e6, allowing white to transpose back into the Benoni or play e3, which lets black capture to an equal position, play d5 with a symmetrical position, or continue to defer with a6 or b6.

Theory table
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