Everyone processes thoughts, emotions, and memories differently, and that was

especially true for Katherine. As an artist, she'd been creating sculptures made from
impermanent substances, like paper strips and filament, that in time would disappear
forever. As each piece slowly dissipated, she'd feel another piece of her broken heart
dissolve too.

What does the last sentence communicate about Katherine's art?

Katherine uses art as a means to help her recover from recent heart surgery.

Her earlier attempts at more permanent sculptures had been unsuccessful.

It provides a glimpse into the reason that Katherine uses impermanent materials.

It suggests that Katherine intentionally uses impermanent materials in her sculptures as a reflection of the fragility and transient nature of her own emotions and memories. The dissolution of each sculpture represents the dissolution of a part of her heart, emphasizing the temporary nature of both her art and her emotions.