Regular expressions that can't match numbers are
A, ^ {0-9} * $
B, ^ \ d {n} $
C, ^ \ d {n,} $
D, ^ \ d (m, n) $
Answer:A
Regular expressions that can't match numbers are
A, ^ {0-9} * $ B, ^ \ d {n} $ C, ^ \ d {n,} $ D, ^ \ d (m, n) $