Let’s understand more about Reflexive and Emphatic pronouns:
Reflexive Pronouns- They seek advice from those pronouns that end in ‘self’ or ‘selves’ and act because the direct or object.
Example- you'll help yourselves to cake and cookies.
Emphatic Pronouns- they're accustomed emphasize a given noun or pronoun in a very sentence.
Example- The boss himself presented the speech.
Now, let’s observe the given options:
Himself, ourselves- ‘Himself’ is employed for emphasizing Mr. Kaul and ‘Ourselves’ acts because the object of the verb within the sentence. Hence, it's the right option.

Ourselves, himself- We cannot use ‘ourselves’ to emphasise Mr. Kaul and ‘himself’ cannot act because the object of the verb for a plural subject. Hence, it's an incorrect option.
Himself, themselves- ‘Himself’ is employed for emphasizing Mr. Kaul but ‘themselves’ cannot act because the object of the verb for the topic ‘we’. Hence, it's an incorrect option.
Yourself, ourselves- We cannot use ‘yourself’ to emphasise Mr. Kaul but ‘ourselves’ acts because the object of the verb within the sentence. Hence, it's an incorrect option.
The correct answer is Option ‘a’.