user
Instruction
Answer the question based on the provided table.


Table
Table Title: profile of online shoppers
Table Content:
<table border="1" cellspacing="0">
<tr> <td> age groups </td> <td> % </td> </tr>
<tr> <td> 15 to 24 </td> <td> 88.1 </td> </tr>
<tr> <td> 25 to 34 </td> <td> 95.2 </td> </tr>
<tr> <td> 35 to 44 </td> <td> 92.5 </td> </tr>
<tr> <td> 45 to 54 </td> <td> 87.3 </td> </tr>
<tr> <td> 55 to 64 </td> <td> 78.9 </td> </tr>
<tr> <td> 65 and over </td> <td> 63.5 </td> </tr>
<tr> <td> household income quartile </td> <td>   </td> </tr>
<tr> <td> quartile 1 lowest household income </td> <td> 70.2 </td> </tr>
<tr> <td> quartile 2 </td> <td> 81.8 </td> </tr>
<tr> <td> quartile 3 </td> <td> 88.8 </td> </tr>
<tr> <td> quartile 4 highest household income </td> <td> 93.5 </td> </tr>
</table>


Question
which sector of household income quartile is more likely to make purchases of goods and services online?


Answer Format
The final answer should be concise and use the following format:
```json
{
    "answer": [
        "answer1",
        "answer2",
        ...
    ]
}
```
rule
["quartile 4 highest household income"]