1. We match each hybridization with its corresponding geometry/orientation.

2. Recall the standard hybridization–shape relations in coordination compounds:

• $sp^3 \rightarrow$ tetrahedral
• $dsp^2 \rightarrow$ square planar
• $sp^3d \rightarrow$ trigonal bipyramidal
• $sp^3d^2 \rightarrow$ octahedral

3. Now match List I with List II:

• A. $sp^3$ $\rightarrow$ III. Tetrahedral
• B. $dsp^2$ $\rightarrow$ IV. Square planar
• C. $sp^3d$ $\rightarrow$ I. Trigonal bipyramidal
• D. $sp^3d^2$ $\rightarrow$ II. Octahedral

4. Therefore the correct matching is:

$A-III,\; B-IV,\; C-I,\; D-II$

5. Compare with the given options:

• Option A: incorrect
• Option B: correct
• Option C: incorrect
• Option D: incorrect

Hence, the correct answer is Option B.