Step 1: Comparing Languages A and D.
Languages A and D show strong lexical similarities across several core vocabulary itemsFor example:
{due / doi} (two), {fratello / frate} (brother), {padre / pata} (father), {sette / sapte} (seven), and {dieci / zece} (ten)
These systematic similarities suggest a close genetic relationshipHence, option (A) is correct
Step 2: Comparing Language A and Language C.
While Language A and Language C share some cognates such as {padre / pathair} and {sette / seacht}, the phonological correspondences are less direct and more divergentThis indicates a more distant relationship rather than a close oneThus, option (B) is plausible
Step 3: Evaluating Language D and Language B.
Language B shows forms like {bi}, {zazpi}, {hamar}, and {elarri}, which differ substantially from Language D formsThere is insufficient systematic similarity to conclude a genetic relationship, but the data is not enough to assert distant relatedness conclusivelyTherefore, option (C) is not supported
Step 4: Evaluating overall unrelatedness.
Clear patterns of cognates across Languages A, C, and D show shared ancestryThis directly contradicts the claim that all four languages are unrelatedThus, option (D) is incorrect
Step 5: Final conclusion.
Using comparative reconstruction, we can plausibly conclude that Languages A and D are closely related, and that Language A is more distantly related to Language C