Why is tRNA called "transfer" RNA?

a
It carries/transfers codes for proteins from the cytoplasm to the DNA.
b
They look like a little truck under the microscope.
c
It carries/transfers a specific amino acid to the ribosome during protein synthesis.
d
It carries/transfers the code for one gene from the DNA to the ribosome.

c

It carries/transfers a specific amino acid to the ribosome during protein synthesis.