Please help on this question, stuck on this one.

Which of the following Reasons are plausible explanations for why multinationals take on local partners when entering foreign markets? Reason 1. The local partner has unique market knowledge that is not easily available for purchase elsewhere. Reason 2. The local partner controls a core element of a value chain that would otherwise block market entry Reason 3. The local partner has preferred access to important resources through its political connections. Reason 1 and 3 only. Reason 1 and 2 only. Reason 2 and 3 only. All of these Reasons 1, 2, and 3. None of these Reasons 1,2 , or 3