Step 1: Understanding the Question:
This question tests sentence transformation, specifically changing an assertive sentence in the Simple Present Tense into an interrogative sentence.
Step 2: Key Formulas and approach:
Identify the subject and tense of the assertive sentence:
Subject: "He" (third-person singular).
Tense: Simple Present Tense (as indicated by the verb "speaks").
The rule for converting a Simple Present assertive sentence with a singular subject into an interrogative sentence is:
\[ \text{Does} + \text{Subject} + \text{Base form of the Verb} + \dots ? \]
Step 3: Detailed Explanation:
$\bullet$ Since the subject "He" is third-person singular, we must use the auxiliary verb "Does" at the beginning of the question. This rules out Option (C) which uses "Do".
$\bullet$ When the auxiliary verb "Does" is used, the main verb must revert to its base/infinitive form ("speak"), not the s-form ("speaks"). This rules out Option (B).
$\bullet$ Option (D) incorrectly uses the auxiliary "Is" with the base form of the verb "speak", which violates simple present question structure rules.
$\bullet$ Option (A) correctly begins with "Does", followed by the singular subject "he", and uses the base form of the verb "speak". This is grammatically perfect.
Step 4: Final Answer:
Thus, the correct interrogative form is Option (A).