Which sentence best describes the process of convection?

a) water vapor in the air forms liquid water.
b) a rock melts when magma touches it.
c) cool air sinks, which forces warm air to rise.
d) sunlight travels through space.

B. A rock melts when magma touches it

Ibelieve this is the part where ulysses reveals his true identity to his faithful servants eumaeus and philaetius: his ragged vest then drawn aside disclosed the sign conspicuous, and the scar exposed: eager they view'd, with joy they stood amazed with tearful eyes o'er all their master gazed: these servants know ulysses by the scar he got when he was a child - so when he showed them the mark, they immediately knew this is truly their master and they hugged him, finally starting to believe his words.