The correct answers regarding why John Smith was considered a great leader are:
- He was known as a hero back in England.
- He maintained a good relationship with the Native Americans.
- He worked hard and expected others to do the same.
The statement "He was liked by all the settlers" is not necessarily accurate, as not all settlers may have felt this way about him. John Smith's leadership was marked by his ability to promote a strong work ethic and establish diplomatic relations with Native American tribes, which were crucial for the survival of the Jamestown colony.