Filling itr2 including interest income of minor child

Hi,

I am filing my ITR form 2 in the java utility and here is my question with respect to filing the ITR2 form with interest income of my minor child.

My SB interest - Rs. A < 2500

My FD interest - Rs. B < 1500

My Son's SB interest - Rs. C < 200

My Son's FD interest - Rs. D. < 3200

My Questions:

1) What amount should be filled in Schedule OS 1b (Interest Gross)?

2) What amount should be filled in Schedule VI A .p (80TTA)?

3) What amount should be filled in Schedule SPI (Income of Specified Person) against my son's name? Should it be a) Rs.D or b) Rs. D+ Rs. C or c) Rs. D+ Rs. C - Rs.1500

Basic reason for asking above questions is:

1) No matter what amount I fill for Q3, the tax amount is not getting changed.

2) Where should I mention  the Rs. 1500 deduction (or exemption)  allowed for income of minor child.

Thanks.