ANSWER
b. liquid
Step-by-step explanation
For each of these options, their volume and shape characteristics are:
Solids:
• Definite volume
,
• Definite shape
Liquids:
• Definite volume
,
• No definite shape
Plasma:
• No definite volume
,
• No definite shape
Gases:
• No definite volume
,
• No definite shape
Liquids, gases, and plasma take the shape of the container.
Hence, the state of matter that has a definite volume but no definite shape is liquid.