Choose the appropriate complex sentence: 'The stolen watch was found.'

• Subject এর পরের verb টি past participle হলে Simple sentence কে Complex করার নিয়ম:
- Subject বসে।
- relative pronoun (who, which, that) বসে।
- tense অনুযায়ী auxiliary verb বসে।
- প্রদত্ত past participle থেকে sentence এর বাকি অংশ বসে।

Simple: The stolen watch was found.
Complex: The watch which was stolen was found.

Source: Advanced Learner's by Chowdhury & Hossain.