HELP TO NO W HLEP MEEP PLEEZ What was the significance of Vaclav Havel being elected president of Czechoslovakia?

He was already powerful in the government.
He had supported the previous communist government.
He had led large strikes against the previous government.
He was a famous writer who opposed the previous government.

Which best describes a difference between SALT I and SALT II?

SALT I limited weapons, while SALT II limited launchers.
SALT I expanded the production of arms, while SALT II limited production.
SALT I allowed the sides to trade weapons, while SALT II expanded this practice.
SALT I limited military forces of each country, while SALT II allowed their growth.