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SELECT 
  * 
FROM 
  cscart_product_options_exceptions 
WHERE 
  product_id = 10960 
ORDER BY 
  exception_id

Query time 0.00068

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	9	Using where; Using filesort

Result

exception_id	product_id	combination
4135	10960	a:3:{i:948;s:2:"-1";i:934;s:5:"18377";i:928;s:5:"18191";}
4136	10960	a:3:{i:948;s:2:"-1";i:934;s:5:"18377";i:928;s:5:"18192";}
4137	10960	a:3:{i:948;s:2:"-1";i:934;s:5:"18377";i:928;s:5:"18195";}
4138	10960	a:3:{i:948;s:2:"-1";i:934;s:5:"18377";i:928;s:5:"18189";}
4139	10960	a:3:{i:948;s:2:"-1";i:934;s:5:"18377";i:928;s:5:"18197";}
4140	10960	a:3:{i:948;s:2:"-1";i:934;s:5:"18377";i:928;s:5:"18199";}
4141	10960	a:3:{i:948;s:2:"-1";i:934;s:5:"18377";i:928;s:5:"18200";}