How many kinds of travel books are mentioned in the passage？A．Two.B．Three.C．Four.D．Five.

A new kind of radar has been developed for space-age travelers. A working laboratory model

Cocktail is blended by many kinds of wine

Many kinds of animals have vanished from

Cocktail is blended by many kinds of wine

Cocktail is blended by many kinds of wine

Many kinds of animals have 【vanished 】from the ea