Q.Match the following

1. Bombyx mori -

Step 1. Recall the real host plant and silk product for each of the four silkmoth species in the table. Bombyx mori (the mulberry silkworm) feeds on Mulberry (Morus) leaves and yields Mulberry silk. Antheraea assamensis (the Muga silkworm) is reared on trees including Som, Soalu and Champa, and yields Muga silk. Antheraea mylitta (the Tasar silkworm) feeds on Arjun (and Sal) leaves and yields Tasar/Tussar silk. Attacus ricini (the Eri silkworm — its species name 'ricini' itself refers to Ricinus, castor) feeds on Castor leaves and yields Eri silk.

**Step 2. Notice the question's printed table lines up the wrong host plant/product with each species (e.g. it pairs Bombyx mori with Champa and Muga, which is incorrect) — this is a scrambled match-the-following that must be re-paired using the real facts from Step 1, not read row-by-row as printed.

Step 3. Reconstruct the correct table using the four given host-plant letters (a. Champa, b. Mulberry, c. Arjun, d. Castor) and four silk-type numerals (I. Muga, II. Eri, III. Tassar, IV. Mulberry). Matching each species to its real host and product gives: 1 (Bombyx mori) - b (Mulberry) - IV (Mulberry silk); 2 (Antheraea assamensis) - a (Champa) - I (Muga); 3 (Antheraea mylitta) - c (Arjun) - III (Tassar); 4 (Attacus ricini) - d (Castor) - II (Eri).

Step 4. Check option A against this reconstructed table. '1 - b - IV' exactly matches Bombyx mori - Mulberry - Mulberry silk, the most well-established and unambiguous of the four facts (every school-level account of sericulture starts with Bombyx mori feeding on mulberry to give mulberry/mulberry silk).

Recall the real host-plant and silk-type association for each named silkmoth species (from sericulture/economic zoology facts), reconstruct the full species-host-product table from those facts rather than the scrambled printed order, and check which lettered option matches the reconstructed table.

• Reading the question's printed table row-by-row as if it were already correctly matched, instead of recognising it is a scrambled match-the-following.
• Confusing the Muga silkworm's host (Som/Soalu/Champa) with the Tasar silkworm's host (Arjun/Sal), since both are wild, non-mulberry trees.
• Forgetting that Attacus ricini's species name comes from Ricinus (castor), and instead pairing it with a different host plant.