Nhận biết (M1)

When printing paper money for the colony of Pennsylvania in the 1730s, Benjamin Franklin—then a Philadelphia shop owner—took steps to combat the circulation of counterfeit notes, such as weaving blue threads and muscovite (a reflective mineral) into the paper he used. __________, he stamped the notes with detailed imprints of sage leaves that proved difficult for forgers to replicate.

Which choice completes the text with the most logical transition?

• A.

  Specifically,

• B.

  For example,

• C.

  That said,

• D.

  Additionally,