The stage of syphilis that is characterized by a bacterial filled chancre is
a. primary syphilis.
b. secondary syphilis.
c. latent syphilis.
d. tertiary syphilis.

Primary syphilis can be diagnosed by seeing bacterial filled chancre in the genital area.  Not all patients exhibit this sign.

True it's the strategy

I’m going to guess these are the choices: a) recreational skiing developed in the mid-19th century b) it was originally invented as a way of getting from place to place in snowy regions c) downhill skiing is currently the only common form of the sport d) it mostly evolved from snowshoeing- if that’s the cases then the answer would be c) downhill skiing is currently the only common form of the sport