The first time John hears the word "adults" is when his father explains to him that the locked cabinet is for "adults, not children." John uses the contrastive use of the familiar word "children" with the unfamiliar word "adults" to learn this new word. John has learned the new word by a process referred to as:

Fast Mapping

Explanation: Fast mapping is one of the many processes of learning and developing the vocabulary for may languages, it involves simultaneous usage of a familiar word which is the exact opposite of the unfamiliar word. It is quite effective in developing the understanding of unknown words, rather than conventional dictionary learning processes, because it is quick and it also helps the learner grab the possible context in which the newly learned word can be used.

answer; ///i believe the correct answer is (c) laissez-faire;

answer; 33,000;