The answer is D, rhyolitic magma
Sedimentary...... because they are often the result of the accumulation of small pieces broken of pre existing rocks....
In order to get the period which is between the heart beats, sixty seconds or one minute should be divided by the number of beats per minute. If heartbeats at seventy times per minute then we divide sixty seconds by seventy.
60/70= 0.86 seconds.
This would be you resume (re-soo-may). It would include your past schooling and job experience, especially college degrees.