What is the characteristics/properties of a Metalloid?

A.Semi conductor, Si, zigzag line on the periodic table, in between metals and nonmetals
B.Have some characteristics of metals and nonmetals, on the right of the periodic table, Si
C.Starts with Baron, the the left of the periodic table, characteristics of metals and nonmetals,

A. Semi conductor, Si, zigzag line on the periodic table, in between metals and nonmetals