Susan's Mother Is Chris Campbell

Multiple Choice

Susan's mother is Chris Campbell.

A) (∃x) (Mxs • x = c)
B) (∃x) {Mxs • (y) [(Mys ⊃ y = x) ⊃ x = c]}
C) (x) (Mxs ⊃ x = c)
D) (∃x) [Mxs • (y) (Mys ⊃ y = x) • x = c]
E) (x) {Mxs ⊃(y) [(Mys ⊃ y = x) • x = c]}