A. Inner planets (Mercury, Venus, Earth, and Mars)
B. Outer planets (Jupiter, Saturn, Uranus, and Neptune)
C. Inner planets (Mercury, Venus) and outer planets (Uranus, Neptune)
D. Inner planets (Earth, Mars) and outer planets (Jupiter, Saturn)
Submitted by: Muhammad Abdullah
The planets Mercury, Venus, Earth, and Mars, are called terrestrial because they have a compact, rocky surface like Earth’s terra firma. The terrestrial planets are the four innermost planets in the solar system.