Correct Answer - Option 5 : Six
Given Information:
Series: G M Z P Q R S U T A B I J K O N S P C E D F A H L G I M S V P O
Elements which are immediately followed by a vowel and immediately preceded by a consonant.
G M Z P Q R S U T A B I J K O N S P C E D F A H L G I M S V P O
There are six such elements.
Hence, the answer is Six.