Step 1: Understanding compounds in Khasi grammar. 
  
A compound word combines two or more words to create a new meaning. In Khasi, compounds are classified into different types based on their structure and semantics. 
  
Step 2: Explanation of each compound type. 
  
- (A) Sem sniang, klur lam, lling syiem – Metaphorical compound: These convey figurative or symbolic meaning rather than literal, hence metaphorical. 
  
- (B) Simladieng, khrapei, sewblandat – Hybrid: These are formed by combining native and borrowed elements from other languages, fitting the hybrid class. 
  
- (C) Langhorot, paldikar, lehsei – Opaque compound: The meanings of the individual words are lost or not directly related to the whole expression. 
  
- (D) Maw it, sohplom, jok lum – Genetive compound: These show possession or belonging, thus belonging to the genetive category. 
  
Step 3: Analysis. 
  
Khasi compounds are both morphological and semantic constructions. 
  
Their meaning often depends on figurative use, etymology, or syntactic blending. 
  
Step 4: Conclusion. 
  
Hence, the correct match is (A) - I, (B) - III, (C) - IV, (D) - II.