Solution:
'A' and 'An' are indefinite articles and 'the' is the only definite article in the English language. 'The' is used with reference to something specific such as a specific person or place. This sentence does not talk about a specific honourable man, hence 'the' will not be used. 'A' cannot be used with honourable because it begins with a vowel sound. By rules of grammar, 'an' is used before a word that begin with vowels or vowel sounds. The word honourable begins with a vowel sound (o) because H is silent, similar to the pronunciation of 'hour.' Hence, Option B 'an' is correct.

Solution:
Here, 'Bhagavad Gita' is a specific book and 'Hindus' are a specific class of people. Hence, definite article 'the' will be used before both the blanks.

Solution:
Here, a specific orchestra 'Cleveland orchestra' is being talked about. Hence, definite article 'the' will be used.

Solution:
There are other good exercises as well. Swimming is one of them. Hence, indefinite article will be used. The word 'good' starts with consonant sound and 'a' article will be used.

Solution:
The first blank shall take 'a' as the sentence talks of only one 'problem'. The second blank shall take 'the' as it is followed by an adjective + a plural noun. The third blank won't take any article as 'population growth' is adjective + an abstract noun.

Solution:
The first blank won't take any article as the use of prison here indicates its primary purpose. The second blank shall take 'the' as Tracey's father went to the prison Tracey was in.

Solution:
Indefinite article is used with singular nouns. 'A' article will be used.