<Tr> <Td> 29 </Td> <Td> Copper </Td> <Td> 60 </Td> </Tr> <Tr> <Td> 5 </Td> <Td> Boron </Td> <Td> 10 </Td> </Tr> <Tr> <Td> 33 </Td> <Td> Arsenic </Td> <Td> 1.8 </Td> </Tr> <Tr> <Td> 32 </Td> <Td> Germanium </Td> <Td> 1.5 </Td> </Tr>

Which of the following elements is an example of a metalloid silicon sodium silver platinum