Herman, Richards, and Woltz (1984) trained dolphins to understand hand commands. Their dolphins could understand five-sign strings, as well as some rules of language. For instance, their dolphins Phoenix and Akeakamai, understood the order words had to be in to perform a certain command. Choose the highest level that the animal may have attained. A. Phonology
B. Morphology
C. Syntax
D. Semantics

B. Morphology

Explanation:

morphology studies words and how they are formed or how they relate to other words in a sentence such as in terms of structure.

Morphology is attained here since the animal understands grammatical rules and sentence structures such as where some parts of speech may appear- verbs, adjectives or nouns. The animal has however not learnt to use these sentences as in speak and so may not be seen to have achieved phonology in the above example

the above statement/question is (true);