I’m sure it’s 140 - 150
Explanation: if it would be 160 wpm or higher, it would be difficult for the listener to absorb the material.
Hope this helps!
Answer:
that gent shows brav'ry and is willing to putteth his life at risketh
It solves the possible unbalance in value of one part of the trade over the other.
D seems like your best bet