This question was previously asked in

IPRC (ISRO) Technician B (Electronics) 2018 Official Paper (Held on 22 April 2018)

Option 1 : 12

Different scales of integration and the number of components (logic gates) in them are:

Complexity |
Number of Gates (Components) |

Small-Scale Integration (SSI) |
< 12 |

Medium Scale Integration (MSI) |
12 to 99 |

Large Scale Integration (LSI) |
100 to 9999 |

Very Large Scale Integration (VLSI) |
10,000 to 99,999 |

Ultra Large Scale Integration (ULSI) |
100,000 to 999,999 |

Hence **option (1)** is the closest option for Small Scale Integration chips (SSL).