The correct answer is (D) “Read what this successful executive says about his first job…”
Step-by-step explanation:
The grammatical function of demonstrative pronouns is to modify a noun or indicate/ point out a noun, which includes places, objects, people, ideas, etc. Additionally, in the English language, the demonstrative pronouns are these/those used for plural nouns, and this/that used for singular nouns.
According to this, it is option D the one that contains a demonstrative pronoun because the sentence includes the word "this", which is used to indicate and modify the noun "successful executive".