The three correct answers that describe the lifestyle of the earliest humans such as Homo habilis are:
- They made use of tools and weapons.
- They lived in groups of 10–12 adults and their children.
- They hunted animals and probably scavenged food left by other predators.
Homo habilis is known for its use of stone tools, social living in small groups, and a foraging lifestyle that included both hunting and scavenging.