An indictment occurs when a grand jury decides that the accused should be charged with a crime a. true b. false

The answer is:  [B]:  "False".

Note:  An "indictment" does have to involve any type of jury, or even any crime serious enough to be handled at the "grand jury level".  An "indictment", or being charged with an offense, may be made by a prosecutor by a court even at the local county level—and SOMETIMES even when no "arrest" has ever been made.