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SELECT 
  * 
FROM 
  cscart_product_options_exceptions 
WHERE 
  product_id = 10961 
ORDER BY 
  exception_id

Query time 0.00029

Explain
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	cscart_product_options_exceptions	ref	product	product	3	const	13	Using where; Using filesort

Result

exception_id	product_id	combination
4144	10961	a:2:{i:729;s:5:"16059";i:730;s:2:"-1";}
4145	10961	a:2:{i:729;s:5:"16078";i:730;s:2:"-1";}
4146	10961	a:2:{i:729;s:5:"16067";i:730;s:2:"-1";}
4147	10961	a:2:{i:729;s:5:"16070";i:730;s:2:"-1";}
4148	10961	a:2:{i:729;s:5:"16079";i:730;s:2:"-1";}
4149	10961	a:2:{i:729;s:5:"16080";i:730;s:2:"-1";}
4150	10961	a:2:{i:729;s:5:"16073";i:730;s:2:"-1";}
4151	10961	a:2:{i:729;s:5:"16081";i:730;s:2:"-1";}
4152	10961	a:2:{i:729;s:5:"16074";i:730;s:2:"-1";}
4153	10961	a:2:{i:729;s:5:"16076";i:730;s:2:"-1";}
4154	10961	a:2:{i:729;s:5:"16077";i:730;s:2:"-1";}