In the statement, it is nowhere mentioned that LG TV is the only TV in the market. Since assumption (i) is not relevant to the statement, so assumption (i) is explicit.In the statement, it is nowhere mentioned that LG TV is the costliest.Since assumption (ii) is not relevant to the statement, so assumption (ii) is explicit.In assumption (iii), it is mentioned that people generally ignore those kinds of advertisements. If advertisements are ignored by people, then why would companies put such kind of advertisement? Since assumption (iii) makes no sense, so this assumption is explicit.Clearly, all the three assumptions are explicit, so none of the assumptions is implicit. Therefore, the correct option is 'd'.