Among the following propositions two arc related in such a way that they can both be true although they cannot both be false. Which are those propositions? Select the correct code.
Propositions:
(a) Some priests are cunning.
(b) No priest is cunning.
(c) All priests are cunning.
(d) Some priests are not cunning.
Codes:
(A) (a) and (b) (B) (c) and (d)
(C) (a) and (c) (D) (a) and (d)
Propositions:
(a) Some priests are cunning.
(b) No priest is cunning.
(c) All priests are cunning.
(d) Some priests are not cunning.
Codes:
(A) (a) and (b) (B) (c) and (d)
(C) (a) and (c) (D) (a) and (d)