Concept:The blank needs a negative word that can refer to a group of more than 2 items.
Explanation:Sandra did not like the bags, so the missing word must show a negative meaning.
The words "both" and "neither" are used only when talking about 2 items.
Since there are 10 bags, these options are not correct.
"Each" is positive in meaning, so it cannot contrast with "although".
"None" means "not any" and works perfectly with 10 items.
Therefore, Sandra liked none of the ten bags.
Answer:Option D (none)