Sergey Sergeev (11 years old) lives with his grandmothe

Sergey Sergeev (11 years old) lives with his grandmothe

Sergey Sergeev (11 years old) lives with his grandmother, because his mother is suffering from a mental illness and is constantly in a psychiatric hospital, and his father left the expedition to the mountains 2 years ago and did not return. The child expressed a desire to adopt:
- native great-grandmother (96 years old, widow);
- mother’s uncle (40 years old, unmarried, sick with chronic tuberculosis);
- Aunt on the part of the father (17 years old, married, two children);
- Sidorova (36 years old, married);
- Spouses Kolokolchikova (Kolokolchikov recognized as having limited legal capacity);
- Strakhov (25 years old, single).
Which of the listed persons can be an adoptive parent? Whose consent for adoption must be obtained?

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