He is quite meticulous in his dealings with others.

reserved
haughty
indifferent
careful

The correct answer is D. careful.

A meticulous person is someone who pays very close attention to detail. They are often very careful and precise in their work. This can be seen in their dealings with others, as they are always mindful of how their actions and words might affect others.

The other options

are incorrect because they do not accurately describe a meticulous person.

A reserved person is someone who is shy or quiet. They may not be as open or expressive as others.

A haughty person is someone who is arrogant or proud. They may look down on others or think they are better than them.

An indifferent person is someone who does not care about something or someone. They may be unconcerned or uninterested.