In this case study Delivra, a marketing automation company wanted to know if adding a privacy guarantee, directly below the sign-up button, would give assurance, increasing sign-ups to their free email marketing guide. 
  Or, conversely, if it would create hesitation, prompting people to question their privacy on the site .Their team tested the two variations of a sign-up form below: 
  
  Version A : With privacy gu 
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