- The statement begins with Vineeta saying she's looking at a picture of a "woman."
- The woman is described as "the wife of my father's brother's father."
- "Father's brother" is Vineeta's uncle.
- "Father's brother's father" is also likely to be Vineeta's grandfather.
- Hence, the "wife" of this person would be Vineeta's grandmother.

Now, let's look at the options:
1. Father's sister: This would be Vineeta's aunt.
2. Mother-in-law: This is incorrect as there is no mention of marriage involving Vineeta.
3. Mother: This would directly refer to Vineeta's own mother which doesn't fit the description given.
4. **Father's mother**: This option fits as Vineeta's father's mother is indeed her grandmother. ✅

**YOUR ANSWER IS RIGHT**