According to Piaget, the language begins by the end of the first stage of cognitive development. This is referred to as

Correct option is B

Symbolic thought.
According to Piaget, symbolic thought marks the end of the sensorimotor stage and the beginning of the preoperational stage of cognitive development. This stage, typically from around 2 to 7 years of age, is where children begin to develop language and engage in pretend play. They start to represent the world with words, images, and drawings, and they form stable concepts and mental reasoning. Symbolic thought allows children to go beyond the here-and-now, thinking about past and future events, and understanding the world through language and mental images.