To answer this question, we need to understand the joint venture entered into by Pantaloon Retail India with a company from the US.
Let's go through each option to determine the correct answer:
Option A) Mackay - This option is incorrect because there is no information regarding Pantaloon Retail India entering into a joint venture with Mackay.
Option B) Staples - This option is correct. Pantaloon Retail India entered into a joint venture with Staples, a well-known office supply retail company from the US.
Option C) Red Lounge - This option is incorrect because there is no information regarding Pantaloon Retail India entering into a joint venture with Red Lounge.
Option D) Smithey - This option is incorrect because there is no information regarding Pantaloon Retail India entering into a joint venture with Smithey.
Therefore, the correct answer is B) Staples. Pantaloon Retail India entered into a joint venture with Staples.