1.Electromagnetic telephones were built and tested in the 1870's by
a) Alexander Graham Bell
b) Antonio Meucci
c) Alexander Graham Bell and Antonio Meucci
2.Evidence now suggests that the first electromagnetic telephone was invented by
a) Alexander Graham Bell
b) Antonio Meucci
c) Thomas Edison
3.If somebody "claims" that something is true, it means that
a) it's definitley true
b) it's definitely not true
c) it could be true