Option A is the correct answer because “deceive” is the correct spelling and decieve is incorrect, it means to make someone believe something wrong or incorrect by cheating.
Option B is incorrect because “relieve” is spelled correctly. It means to reduce or decrease something, or to get rid of.
Option C is incorrect because “believe” is spelled correctly, it means to accept a fact.
Option D is incorrect because “belief” is spelled correctly correctly, it means to believe.