The first one because this, that, these, and those are demonstrative pronoun.
Sagacious, it could be defined as having or showing keen mental discernment and good judgment, <em><u>shrewd</u></em> is a synonym of what this word can be used as. Some other synonyms would be <em>discerning, insightful, perceptive, prudent, sage, sapient, wise.</em> Also, it can describe people or in this case animals, therefore the best option to choose would be <u><em>“WISE”. </em></u>
it is option A C: hope this helped
