I would probably say plump.
Essentially, in this question, you're looking for the word that would be the least insulting. More broadly, when asked about positive connotation, you're looking for a word that is not viewed negatively.
Words like fat and cheap have negative connotations, especially when applied to people. Words like plump and frugal are much more positive.
Barbora took a picture in summer
Vincent didn’t wash the dishes
I think that’s how you answer it
3. The forces sent by Cincones to stop the plundering of Odysseus and his men were skilled and powerful.