From the options given below fill in the blanks with appropriate articles.

_________ cow is _________ noble animal.

a, a

The correct answer is Option (3) - a, a

• "Cow" starts with the consonant sound /k/; therefore, we use the indefinite article "a".
• "Noble" begins with the consonant sound /n/; thus, we also use "a" before it.

So, the sentence reads: "A cow is a noble animal."