Answer: Option d
Explanation: In simple words, it refers to the marketing stare in which an organisation performs its promotional function in such a way that the customers comes towards the product rather than the product going towards customer as in the case of push strategy.
This is a kind of channel strategies and is used by large firms generally, as it requires a high marketing budget to implement these strategies. An organisation following this strategy usually don't outsource their marketing activities and spends majority of their budget on advertisements and promotion.
Thus, from the above we can conclude that the company is using pull strategy.