When USA withdraws from Cold War-era pact, known as The INF treaty, signed in 1987 by blaming the Russians for demise the pact?

When USA withdraws from Cold War-era pact, known as The INF treaty, signed in 1987 by blaming the Russians for demise the pact?A. 12 AugustJanuary 2017
B. 7 August 2018
C. 21 August 2019
D. August 2, 2019