How do you create a new object from a class in PHP?

Creating a new object from a class in PHP is accomplished by using the new keyword followed by the class name. This is the standard method for instantiation in object-oriented programming within PHP. When you use the new keyword, PHP allocates memory for the object and invokes the class constructor, if one is defined, to initialize the object.

For instance, if you have a class named Car, you would create an object of that class by writing $myCar = new Car();. Here, $myCar becomes an instance of Car, and you can then access the properties and methods defined within the class.

The other methods listed, such as instantiating the class constructor or calling the class name directly, do not conform to PHP's object instantiation syntax. The use of a specific method like create_object() is not part of standard PHP practices for creating objects, which further emphasizes that option A is the correct and conventional approach to object creation in PHP.