Correct Answer:
Option B - Yesterday I saw 'a' European riding on 'an' elephant. E is vowel but article deals 'a' because the pronunciation of European–Eu + ropean that consider Hindi words Ùet. But Elephant deals 'An' the rule of article.
B. Yesterday I saw 'a' European riding on 'an' elephant. E is vowel but article deals 'a' because the pronunciation of European–Eu + ropean that consider Hindi words Ùet. But Elephant deals 'An' the rule of article.