Read the following passage and answer the question given below.

Doing extensive research before making an online purchase may be futile. An article in the journal, Marketing Science, finds that even though consumers may spend days looking for the right product, what they purchase tends to be remarkably close to items they searched and found in their very first search. The researchers derive this from the browsing and purchase history of over two million consumers. They used a sample of more than $1,000$ digital camera purchases with full browsing histories over a $3-$month period. They also found that while about $25$ percent of consumers search and purchase in just $1$ online session, the average purchase takes much longer $-$ around $15$ days and over $6$ sessions. The vast majority of purchases happens in under a month and about $40$ percent of consumers search for only one brand and $20$ percent for only $1$ model, while the average consumer will search for about $3$ brands and $6$ models.

Question: On average, how many product searches and online sessions does a consumer need to finally buy a product?

Around $6$ models and over $6$ sessions

Around $15$ days and only $1$ or $2$ models

$1$ model and only $1$ online session

Around $5$ models and a time period of $3$ months