Concept:The Inter Tropical Convergence Zone (ITCZ) is a belt of low pressure near the equator where trade winds converge, causing rising air and heavy rainfall.
Explanation:Statement 1 is correct because the Tropical Wet Climate is dominated by the ITCZ throughout the year, leading to consistent and very high rainfall, making it one of the rainiest climates.
Statement 2 is correct: the Tropical Savanna Climate shows a wet and dry season due to the seasonal shift of the ITCZ and subtropical highs. When the ITCZ moves over the region, rain falls; when subtropical highs dominate, it is dry.
Statement 3 is correct: the Tropical Monsoonal Climate receives heavy rainfall because the ITCZ remains near these areas for a large part of the year, especially during summer when it shifts northward.
Answer:All three statements are correct. Therefore, the correct option is D: 1, 2 and 3.