Correct option: 4) Competent - is the most suitable option. Capable means having attributes (such as physical or mental power) required for performance or accomplishment. Complacent - marked by self-satisfaction especially when accompanied by unawareness of actual dangers or deficiencies : marked by complacency : SELF-SATISFIED. Consistent - marked by harmony, regularity, or steady continuity: free from variation or contradiction. Conceited - having or showing an excessively high opinion of oneself; vain Competent - having requisite or adequate ability or qualities: FIT Hence, Option 4 is the correct option.