Мальчик, который сидит во втором ря

Мальчик, который сидит во втором ряду справа не знал, что он будет решать проблему туберкулеза?

Результаты (английский) 1:

The boy who sits in the second row on the right did not know that he would address the issue of TB?

Результаты (английский) 2:

The boy who sits in the second row on the right did not know that it will solve the problem of tuberculosis?

Результаты (английский) 3:

The boy, who is sitting in the second row on the right side did not know that he would address the problem tuberculosis?