Which reason provides the strongest support for the claim?

Defacing a coin of the realm was against the law, so when women deliberately stamped “Votes for Women” across the image of the king’s face on a penny, it sent a forceful and shocking message.
British coins had two sides: the profile of Edward VII appeared on one side, while the image of Brittania appeared on the other.
British women over the age of 30 were given the right to vote in 1918, and in 1928 the Equal Franchise Act extended the right to vote to all women over the age of 21.
In Britain in the 1880s, roughly 60 percent of the male population had the right to vote, but no women at all were able to do so.