Internal check is meant for A. prevention of frauds. B. detection of frauds. C. helping audit is depth. D. detection of errors.

Prevention of frauds  is  correct

D becouse main task is to identify the short coming and support managment attain its goals in accordance with the compliance, pattern defined and regulation policies. 

Short fall to these may become a out root to fraud existance chances.

Internal Audit has2 major roles

Assurance and advisory.