Answer:
The answer is "Option A".
Explanation:
In the given question the method toString() is used that converts any value into a string. In this code two print method is used, that can be described as follows:
- In the first method, object1 is created, which is used to print all object values.
- In the second method, object1 uses the toString() method, which converts all values into a string, that's why the answer to this question is "True".
Mobile phones transmit and receive signals using electromagnetic waves, that is, wireless signal are electromagnetic waves which can travel through a vacuum, they do not need a medium or matter.
<h3>What are electromagnetic waves?</h3>
They are generated by electrical and magnetic particles moving at the same time (oscillating).
<h3>Characteristics of electromagnetic waves</h3>
- Network waves are electromagnetic waves.
- A mobile phone has coverage when it receives electromagnetic waves from at least one base station.
- They do not necessarily require a material medium for their propagation.
Therefore, we can conclude that electromagnetic waves are those that do not need a material medium to propagate and include, among others, radio, television and telephone waves.
Learn more about electromagnetic waves here: brainly.com/question/13803241
A, because if not, there is nothing to say it exsists
To protect from attackers gaining access by sitting on a certain configuration too long.
