Step 1: Word meaning.
The word "Suspicion" means a feeling or belief that someone is guilty of an illegal, dishonest, or unpleasant act.
Step 2: Checking spellings.
(A) Suspeceun: Wrong.
(B) Suspicion: Correct spelling.
(C) Seuspicion: Incorrect, wrong prefix.
(D) Saspicion: Incorrect.
Step 3: Conclusion.
Correct spelling is (B) Suspicion.