Consider the following Political Parties and arrange them in the chronological order of their establishment.I.Bahujan Samaj PartyII.Samajwadi PartyIII.Telugu Desham PartyIV.All India Trinamool Congress

1. A

   III, I, II, IV

   III, I, II, IV. Telugu Desam Party was founded in 1982, Bahujan Samaj Party in 1984, Samajwadi Party in 1992, and All India Trinamool Congress in 1998. This correctly arranges all four political parties from earliest to latest establishment year, making this option the accurate chronological sequence and thus the correct key.

2. B

   II, I, III, IV

   II, I, III, IV. This option incorrectly places the Samajwadi Party (1992) before the Telugu Desam Party (1982) and Bahujan Samaj Party (1984). Therefore, this sequence fails to follow the correct chronological order of establishment.

3. C

   III, II, I, IV

   III, II, I, IV. This choice places the Samajwadi Party (1992) before the Bahujan Samaj Party (1984), which reverses their actual founding years. Consequently, this option is incorrect.

4. D

   I, II, III, IV

   I, II, III, IV. This option starts with the Bahujan Samaj Party (1984) instead of the Telugu Desam Party (1982), which was established earlier. Hence, this sequence is wrong.

Summary. Official key is (a) III, I, II, IV. To solve this question, one must recall the exact establishment years of the regional and national parties: Telugu Desam Party (1982), Bahujan Samaj Party (1984), Samajwadi Party (1992), and All India Trinamool Congress (1998). A common confusion arises between the founding years of the BSP and SP, as both emerged in the 1980s and 1990s respectively in northern politics. Only option (a) successfully captures the precise historical timeline of these four political formations.