He failed ____ his best efforts.

Ain addition to

Bowing to

Cin spite of

Dnot mentioning


C. in spite of

Related Questions:

He could launch a new era, ........ a few attacks.

He is ……. a hypocrite or a deceiver.

I have never eaten ..... nice mangoes as this.

We will have to go _____ she comes with us ___not.

She looks ..... your sister.