If c≠d and c·d≠0, which of the following may be true?  Choose the correct choice.
A) c.d =0 B) c-d=0 C) c+d=2 D) (c+d)(c-d)=0 E) c−d=d−c
except (c+d)(c-d)=0 all conditions are not as per question   (c+d)(c-d)=0
<result>D</result>
If c≠d and c·d≠0, which of the following may be true?