Use the weather map to answer the question. Weather map with blue line with triangles pointing down and to the right. Red line with semi-circles pointing up and to the right. Red line is to the right of the blue line.

© Dorling Kindersley / Universal Images Group / Image Quest 2016

What does the red line indicate? (3 points)

a

A cold front is moving to the north and east.

b

A cold front is moving to the south and west.

c

A warm front is moving to the north and east.

d

A warm front is moving to the south and west.