In the given passage the correct option for the first blank is 4, for the second blank is 250,000, for third blank is second and for the fourth blank is conversion rates.
What is Conversion rate?
Conversion rate refers to the rate at which the conversion took place. it is calculated as the number of conversions divided by the total number of visitors.
In late January, the megaphone was set up in four states. With this feature social media send about 250,000 users to vote. The site quickly became the second most-viewed website. One issue that was noticed related to conversion rates.
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