The correct answer is option 3: Both 1 and 2.

Explanation:

1. The movement of isotherms refers to the shifting of lines on a map that connect points with the same temperature. Isotherms typically shift due to the movement of air masses and the redistribution of heat. Over land, there are various factors such as elevation, topography, and vegetation that can influence the movement of isotherms. As a result, isotherms tend to have a greater degree of movement over land compared to the oceans. This is because the land surface heats up and cools down more rapidly than the large bodies of water.

2. Coastal regions generally experience a smaller range of temperature compared to continental interiors. This is due to the moderating effects of the nearby ocean. The ocean acts as a heat sink, absorbing heat during the day and releasing it during the night. As a result, coastal areas have a more moderate climate, with smaller variations in temperature compared to areas further inland. Continental interiors, on the other hand, do not have the moderating influence of the ocean and are more susceptible to extreme temperature fluctuations.

Both of these statements are correct and reflect the differences in temperature patterns between land and ocean areas.