Why was Prophet Muhammad (PBUH) called "Al-Amin"? Choose the correct option.

The question asks why Prophet Muhammad (PBUH) was called "Al-Amin". The options provided are:

i) সত্যবাদিতার জন্য (For truthfulness)

ii) সতাপরায়ণতার জন্য (For honesty)

iii) বিশ্বস্ততার জন্য (For trustworthiness)

"Al-Amin" is an Arabic title meaning "The Trustworthy" or "The Honest". Prophet Muhammad (PBUH) earned this title due to his impeccable character, which included being truthful, honest, and trustworthy in all his dealings.

• i) সত্যবাদিতার জন্য (For truthfulness): Prophet Muhammad (PBUH) was renowned for always speaking the truth. This is a key aspect of being "Al-Amin".
• ii) সতাপরায়ণতার জন্য (For honesty): He was known for his honesty in all transactions and interactions. This is also a core reason for the title.
• iii) বিশ্বস্ততার জন্য (For trustworthiness): People trusted him implicitly with their belongings and secrets, knowing he would never betray their trust. This is directly related to the meaning of "Al-Amin".

All three reasons (truthfulness, honesty, and trustworthiness) are valid and contribute to why Prophet Muhammad (PBUH) was called "Al-Amin". Therefore, the option that includes all three is correct.

The options are:
(ক) iওii (i & ii)
(খ) iওiii (i & iii)
(গ) iiওiii (ii & iii)
(ঘ) i,iiওiii (i, ii & iii)

Since all three reasons are correct, option (ঘ) is the correct answer.

The final answer is $\boxed{\text{ঘ}}$