Informal language typically includes colloquial expressions or slang. In the given options, "getting into" is an example of informal language.
An example of informal language would be option B: getting into. To determine this, you can look at the phrasing and tone of the option. Informal language generally includes more colloquial terms and expressions. In this case, "getting into" is a more casual and relaxed way of expressing the action of becoming involved or developing an interest in something. The use of "getting" instead of "finding" or "discovering" adds a casual tone to the statement. Therefore, B is the best choice representing informal language.
