Once in a lifetime, Muslims are expected to go on a Hajj to Mecca. A Hajj is a pilgrimage to a holy site. Mecca is holy because None of the above
It is the birthplace of Mohammad and where Adam and Abraham lived
It has the biggest mosque in the world
It is the capital of Saudi Arabia

According to ohrp, a problem is an “unanticipated problem” when it meets which of the following criteria: unexpected, related or possibly related to the research, suggests that the research does not put the subjects or others at greater riskunexpected, related or possible related to the research, suggests the research puts subjects or others at greater riskunexpected, unrelated to the research but still occurring with a subject, suggests the research puts others at greater riskexpected, related or possible related to the research, suggests the research puts others at greater risk