Match the items in Group I with an appropriate description in Group II.

Group I	Group II
P. UPGMA	1. Protein sequence database
Q. CLUSTAL	2. Phylogenetic analysis
R. SWISS-PROT	3. 3-D structure visualization
S. RasMol	4. Multiple sequence alignment

A. P-4, Q-1, R-2, S-3

B. P-2, Q-4, R-1, S-3

C. P-2, Q-3, R-1, S-4

D. P-2, Q-1, R-4, S-3

Answer: Option B