Anode rays are also called as:
A.Cathode rays
B.Canal Rays
C.X-rays
D.None of these

Hint: An anode ray is a beam of positive ions that is created by certain types of gas-discharge tubes. When these rays are produced, the positive ions are all attracted to the negative cathode and some pass through the holes in the cathode. These are the anode rays.

Complete step by step answer:
Anode Rays are also called a positive ray or a canal ray. Anode rays consist of a positive charge. So, they tilt next to perforated cathode, which consists of negative charge. Moreover, it passes through the anode rays. They pass next by canals or holes which further produce fluorescence. That’s why anode rays are known as canal rays. Furthermore, the anode rays produced at the anode of the discharge tube are called canal rays because they pass through the holes of the cathode.
The streams of positively charged particles are called anode rays or positive rays or canal rays. Anode rays are not emitted from the anode but are produced in the space between the anode and the cathode. The beam of rays which travel in a direction away from anode towards cathode when gas is taken in a discharge tube is subjected to the action of high voltage under low pressure is known as canal rays.

So, the correct answer is Option B.

Additional Information:
Anode Rays were found to consist of positively charged particles and were called anode rays or positive rays or canal rays. There are some properties of anode rays or canal rays:
Anode rays travel in a straight line.
Anode rays produce heating effects when struck against a metal foil.

Note:
Cathode rays are negatively charged, whereas canal rays are positively charged. Cathode rays emanate from the Anode, but they form from the collision of gas molecules within the chamber. Cathode rays are attracted to positive plates in an electric field.