Which of the following is the correct grammatical Sandhi-Viccheda (word splitting) for the word 'वयोवृद्ध'?

The word 'वयोवृद्ध' is formed through the rules of Visarga Sandhi.
According to the rules of Visarga Sandhi, if a Visarga ($\text{ः}$) is preceded by the short vowel sound 'अ' and followed by a voiced consonant or a semi-vowel (such as 'व'), the Visarga along with the preceding vowel transforms into the vowel sound 'ओ' ($\text{ो}$).

$$\text{वयः}+\text{वृद्ध}=\text{वयोवृद्ध}$$

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