In the question below, an incomplete statement (Stem) followed by fillers is given. Pick out the best one which can complete the incomplete stem correctly and meaningfully.
The employer appeared to be in such an affable mood that Richard ......
decided to ask for a raise in his salary
was scared to talk to him about his leave
felt very guilty for his inadvertent slip
promised him that he would not commit mistake again
was pained to press his demand for a new flat.
Correct answer is A
No explanation has been provided for this answer.