Fill in the blanks with the most appropriate option:-

In 1977, George was convicted ……… murder and sentenced to death.

of

The correct option to fill in the blank is of.

The word "of" is used to indicate a crime or offense. In this case, George was convicted of murder.

The other options are not as appropriate:

• For can also be used to indicate a crime or offense, but it is more general. It would not be as accurate to use "for" in this context, as George was specifically convicted of murder.
• To is used to indicate a purpose or destination. It would not be accurate to use "to" in this context, as George was not convicted to murder.
• By is used to indicate the person or thing that committed a crime or offense. It would not be accurate to use "by" in this context, as George was not convicted by murder.