Deductive syllogism is a valid form of deductive reasoning which is logically represented as follows: Por Q. Not -P. Therefore, Q. Which of the following is/are deductive syllogism(s)? i. I will have pasta and pizza for dinner. I did not have pizza. Therefore I had pasta only ii. I will have pasta or pizza for dinner. I did not have pasta Therefore, I had pizza only. iii. If I will have pasta for dinner, then I will not have pizza. I had pasta for dinner. Therefore, I did not have pizza. a. only i b. ii and iii c. iand iii d. only iii e. only ii

The correct answer is d. only iii.<br /><br />Explanation:<br />Deductive syllogism is a form of deductive reasoning where if the premises are true, the conclusion must also be true. In the given options, only option iii represents a deductive syllogism. The premises are "If I will have pasta for dinner, then I will not have pizza" and "I had pasta for dinner." Based on these premises, the conclusion "Therefore, I did not have pizza" logically follows. Options i and ii are not deductive syllogisms as the conclusions do not logically follow from the premises.