Step 1: Grammatical form of subject NP.
In (1A) the subject NP is in the nominative form \textit{lamea} (child), while in (1B) it is marked with the dative case \textit{lameÉ™á¹É™}.
Similarly, in (2A) \textit{malli} (brother) is nominative, while in (2B) \textit{malliá¹É™} is dative.
\(\Rightarrow\) Clear grammatical change in NP form. Hence (A) is True.
Step 2: Thematic grid of the verb.
In A-type sentences, the subject NP is an agent (active experiencer) – "child listens", "brother cries".
In B-type sentences, the subject NP becomes an experiencer with less control, indicating involuntary action – "hears despite himself", "bursts into tears despite himself".
Thus the verb's thematic roles shift from agentive to experiencer/involuntary.
\(\Rightarrow\) (B) is True.
Step 3: Phonological shape of verb.
Compare:
\textit{ahanəwa} vs. \textit{əhenəwa} (phonological alternation).
\textit{aɳdənəwa} vs. \textit{aɳdənəwa} (with slight alternation in onset).
\(\Rightarrow\) Verbs exhibit phonological variation.
So (C) is True.
Step 4: Verb valency.
Valency refers to the number of arguments a verb requires. In both A and B sentences, the verbs still take the same number of arguments (subject + object for (1), subject for (2)).
There is no change in valency, only in case-marking and thematic interpretation.
\(\Rightarrow\) (D) is False.
\[
\boxed{Correct Answer: (A), (B), (C)}
\]